# Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

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URL: https://www.frixlaw.com/law-library/documents/crs%3AR47666

## Record

- **Collection:** Congressional research report
- **Document type:** CRS Report
- **Published:** August 29, 2023
- **Citation:** R47666

## Text

Infrastructure Codes, Standards, and
Regulations: Frequently Asked Questions
August 29, 2023

Congressional Research Service
https://crsreports.congress.gov
R47666

SUMMARY

Infrastructure Codes, Standards, and
Regulations: Frequently Asked Questions
Ensuring the safe operation of and uninterrupted services provided by infrastructure, as well as
resiliency, efficiency, environmental protection, and other aspects of infrastructure performance,
may raise issues of congressional interest. Given that codes, standards, and regulations and their
implementation affect infrastructure performance, Congress may consider the role of the federal
government and nonfederal stakeholders in developing, adopting, and enforcing infrastructure
codes, standards, and regulations.

R47666
August 29, 2023
Linda R. Rowan,
Coordinator
Analyst in Natural
Resources and Earth
Sciences

Infrastructure consists of physical networks (systems and facilities) that provide functions and
services to the community. Federal agencies and some nonfederal organizations provide codes, standards, and/or regulations
for various type of infrastructure, including those related to transportation, energy, communications, and water. Adoption and
enforcement of infrastructure codes or standards varies across the United States.
Transportation infrastructure is divided into five groups: (1) roads, bridges, highways, and road tunnels; (2) rail; (3) air; (4)
ports, harbors, and waterways; and (5) pipelines for the transport of fuel alone (e.g., a natural gas pipeline). The Federal
Highway Administration (FHWA), the American Association of State Highway and Transportation Officials, and other
organizations provide codes, standards, and/or regulations for some aspects of roads, bridges, highways, and road tunnels.
The Federal Transit Administration, the Federal Railroad Administration, and other organizations provide codes, standards,
and/or regulations for some aspects of rail transportation infrastructure. The Federal Aviation Administration (FAA) and
other organizations provide codes, standards, and/or regulations for some aspects of air transportation infrastructure.
Pipelines delivering natural gas, crude oil, refined products (e.g., gasoline, diesel), and natural gas liquids (e.g., ethane,
propane) are part of the transportation infrastructure because they transport fuels. The U.S. Department of Transportation’s
Pipeline and Hazardous Materials Safety Administration (PHMSA) oversees the design, construction, operation, and
maintenance of pipelines that carry natural gas or hazardous liquids.
Energy infrastructure includes electric power systems, natural gas, and liquid fuels systems as they relate to the generation,
transmission, and distribution of electric power and emergency and standby power systems. For electric power systems, the
Federal Energy Regulatory Commission (FERC) regulates the interstate transmission and wholesale sale of electricity. FERC
is also responsible for regulating the reliability of the bulk power system.
Communications infrastructure includes wireline, wireless, cable and broadcast, and satellite networks. The Federal
Communications Commission (FCC) regulates interstate and international communication services and has jurisdiction over
communications by telephone, cable, radio, wireless, wireline, and internet. State agencies have authority over local wireline
telephone services, and most often a public service commission (PSC) oversees communications infrastructure at the state
level.
Water infrastructure includes drinking water, wastewater, dam, and levee infrastructure. The U.S. Environmental Protection
Agency (EPA) establishes requirements for drinking water quality under the authority of the Safe Drinking Water Act
(SDWA; codified generally as 42 U.S.C. §§300f-300j) and for wastewater effluent quality under the authority of the Federal
Water Pollution Control Act or Clean Water Act (codified generally as 33 U.S.C. §§1251-1387). The Federal Emergency
Management Agency (FEMA) administers a National Dam Safety Program (NDSP) to facilitate dam safety. Every state
except Alabama has established a state regulatory program for dam safety. The U.S. Army Corps of Engineers and FEMA are
developing levee safety guidelines to serve as voluntary best practices.

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Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

Contents
Introduction ..................................................................................................................................... 1
Infrastructure ................................................................................................................................... 1
What Is Infrastructure? .............................................................................................................. 1
What Is the Purpose of Codes, Standards, and Regulations for Infrastructure?........................ 1
What Types of Infrastructure Are Discussed in This FAQ? ...................................................... 2
Do Building Codes Apply to Infrastructure?............................................................................. 3
What Is Transportation Infrastructure? ..................................................................................... 3
What Codes, Standards, and Regulations May Apply to Transportation Infrastructure? .......... 4
What Is Energy Infrastructure? ................................................................................................. 7
What Codes, Standards, and Regulations May Apply to Energy Infrastructure?...................... 7
What Is Communications Infrastructure? ................................................................................. 8
What Codes, Standards, and Regulations May Apply to Communications
Infrastructure? ........................................................................................................................ 9
What Is Drinking Water and Wastewater Infrastructure? ......................................................... 11
What Codes, Standards, and Regulations May Apply to Drinking Water and
Wastewater Infrastructure?.................................................................................................... 11
What Are Dams and Levees? .................................................................................................. 12
What Codes, Standards, and Regulations May Apply to Dams? ............................................ 13
What Codes, Standards, and Regulations May Apply to Levees? .......................................... 14
What Is the Federal Flood Risk Management Standard? ........................................................ 15

Figures
Figure 1. Examples of Communications Infrastructure................................................................... 9

Tables
Table 1. Selected Types of Infrastructure Systems and Categories of Infrastructure ...................... 2
Table 2. Transportation Infrastructure: Examples of Responsible Organizations and
Codes, Standards, or Guidelines................................................................................................... 6
Table 3. Electric Power Infrastructure: Examples of Responsible Organizations and
Codes, Standards, or Guidelines................................................................................................... 8
Table 4. Communications Infrastructure: Examples of Responsible Organizations and
Codes, Standards, or Guidelines................................................................................................. 10
Table 5. Drinking Water and Wastewater Infrastructure: Examples of Responsible
Organizations and Codes, Standards, or Guidelines ................................................................... 11
Table A-1. Abbreviations Used in This Product ............................................................................ 17

Appendixes
Appendix. Abbreviation Table ....................................................................................................... 17

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Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

Contacts
Author Information........................................................................................................................ 18

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Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

Introduction
Members of Congress may be interested in ensuring the safe operation and uninterrupted services
provided by infrastructure, as well as in improving infrastructure performance.1 Performance
objectives may include reliability, resiliency, efficiency, sustainability, and environmental
protection. Given that codes, standards, and regulations may impact infrastructure performance,
Congress may consider the role of the federal government and nonfederal stakeholders in
developing, guiding, adopting, and enforcing infrastructure codes, standards, and regulations.
This report addresses some frequently asked questions about federal and nonfederal activities to
develop, guide, adopt, or enforce codes, standards, and/or regulations related to infrastructure.
In this report, infrastructure does not include buildings, although some building codes, standards,
and regulations influence infrastructure performance. Additional information about building
codes, standards, and regulations that may influence infrastructure are described in CRS Report
Buildings Codes, Standards, and Regulations: Frequently Asked Questions (hereinafter Building
Codes FAQ).

Infrastructure
What Is Infrastructure?
For purposes of this report, infrastructure is defined as physical networks (systems and facilities)
that provide functions and services to the community.2 Some definitions of infrastructure include
buildings, but this report does not. For information about codes, standards, and guidelines for
buildings and some that may also relate to infrastructure, see the Building Codes FAQ.
Infrastructure is a distributed service involving structures or systems that may cross over large
regions of different jurisdictions and may be owned, operated, and regulated by different
stakeholders.3 Likewise, different stakeholders may develop codes, standards, guidelines, or
certifications for the planning, construction, repair, or renovation of infrastructure.4

What Is the Purpose of Codes, Standards, and Regulations for
Infrastructure?
Codes, standards, and regulations for the planning, design, materials, construction, operation and
maintenance, repair, and renovation of infrastructure promote a minimum level of safety, public
1 For example, the Federal Power Act (16 U.S.C. §§791 et seq.) authorized the Federal Energy Regulatory Commission

(FERC) to certify a national Electric Reliability Organization, which is the North American Electric Reliability
Corporation (NERC). NERC is a nonprofit entity whose mission is to ensure the reliability of the power grid in North
America. The Energy Policy Act of 2005 (P.L. 109-58) directed FERC to oversee mandatory and enforceable reliability
standards for the nation’s wholesale power grid.
2 National Institute of Standards and Technology (NIST), Community Resilience Planning Guide for Buildings and
Infrastructure Systems, NIST SP 1190GB-16, October 2020, p. 3, at https://nvlpubs.nist.gov/nistpubs/
SpecialPublications/NIST.SP.1190GB-16.pdf.
3 Stakeholders may include federal agencies; state, local, tribal, or territorial agencies; private companies; and other
organizations.
4 Stakeholders may include federal agencies; state, local, tribal, or territorial agencies; private companies; standards
developing organizations; engineering and other professional societies; architects; designers; engineers; and other
professionals.

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health, welfare, function, and operation. Codes, standards, and regulations seek to provide a
consistent, transparent, and systematic approach to constructing and operating infrastructure that
facilitates compatibility, interoperability, safety, quality, and reliability. In addition, the use of
codes, standards, and guidelines may make it more efficient to implement infrastructure
performance improvements, such as increasing resiliency and energy efficiency. Stakeholders can
suggest modifications to existing codes, standards, or guidelines using an existing method based
on transparency and consensus-building.5 (See the Building Codes FAQ for more general
information on codes, standards, and guidelines.)

What Types of Infrastructure Are Discussed in This FAQ?
The National Institute of Standards and Technology (NIST) created the Community Resilience
Planning Guide for Buildings and Infrastructure System, which divides infrastructure in the
United States into the categories and subcategories shown in Table 1.6 The rest of this report is
organized using these categories and subcategories. The infrastructure systems discussed, as well
as the codes, standards, and regulations, are examples rather and do not constitute a
comprehensive overview.
Table 1. Selected Types of Infrastructure Systems and Categories of Infrastructure
Infrastructure Systems

Categories Within Infrastructure Systems

Transportation

Highways, including roads, bridges, and tunnels
Rail, including public transportation, intercity passenger,
and freight
Air
Ports, harbors, and waterways
Pipelines used to move fuel alone (e.g., natural gas
pipeline)

Energy and Electric Power

Electric power—generation, transmission, and
distribution
Fuel supply for electric power (except fuel pipelines
covered in transportation)
Emergency and standby power

5 Stakeholders are listed in footnote 3. NIST, Community Resilience Planning Guide for Buildings and Infrastructure

Systems, Volume II, NIST Special Publication 1190, 2016, doi: 10.6028/NIST.SP.1190v2 (hereinafter, NIST,
Resilience Guide II). For example, various entities are working on ways to incorporate climate change-related hazard
considerations into infrastructure design and management. In 2018, the American Society of Civil Engineers’ (ASCE’s)
Committee on Adaptation to a Changing Climate released a manual of practice to provide guidance on methods for
infrastructure analysis and design (Bilal M. Ayyub, ed., Climate-Resilient Infrastructure: Adaptive Design and Risk
Management, Committee on Adaptation to a Changing Climate, ASCE (Reston, VA: American Society of Civil
Engineers, 2018); for more information about the chapters of this book, see https://ascelibrary.org/doi/book/10.1061/
9780784415191.
6 NIST, Resilience Guide II. The NIST guide uses the same categories of infrastructure as defined under the term
lifeline infrastructure to include “public works and utilities, including transportation facilities and infrastructure, oil and
gas pipelines, electrical power and communication facilities and infrastructure, and water supply and sewage treatment
facilities” (42 U.S.C. §7703(6)).

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Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

Infrastructure Systems

Categories Within Infrastructure Systems

Communication

Landline telephone
Cellular and mobile
Internet and voice over internet protocol
Cable television and radio
Broadcast television and radio

Water

Drinking water—supply, transmission, treatment,
pumping, storage, and distribution
Wastewater and stormwater—collection, conveyance,
pumping, treatment, and discharge
Dams
Levees

Source: Congressional Research Service (CRS) using National Institute of Standards and Technology (NIST),
Guide for Buildings and Infrastructure Systems, Volume II, NIST Special Publication 1190, 2016, doi:
10.6028/NIST.SP.1190v2 (hereinafter, NIST, Resilience Guide II). Dams and levees categories added by CRS.

Do Building Codes Apply to Infrastructure?
In general, state or local building codes and model building codes do not apply to infrastructure
(see the Building Codes FAQ). Where infrastructure connects to or runs through a building, some
building codes and standards may apply to some components of infrastructure. For example,
electrical, plumbing, parking, and building access have building codes and standards, because
these components are part of the building structure.

What Is Transportation Infrastructure?
The NIST Community Resilience Planning Guide divides transportation infrastructure into five
categories: (1) roads, bridges, highways, and road tunnels; (2) rail; (3) air; (4) ports, harbors, and
waterways; and (5) pipelines for the transport of fuel alone, such as a natural gas pipeline.7
The category of roadways includes roads, bridges, highways, and road tunnels. According to
NIST, roads and highways serve as the primary transportation infrastructure used by the most
people and businesses in the United States. The road network needs to consider vehicles,
bicycles, and pedestrians as the most common methods of transportation and may consider
restrictions, such as the size of vehicles on certain roads or alternative methods of transportation,
such as scooters.8
The category of air includes airports and heliports. As defined in statute (49 U.S.C. §47102), an
airport includes (1) an area of land or water used or intended to be used for the landing and taking
off of aircraft, (2) an appurtenant area used or intended to be used for airport buildings or other
airport facilities or rights of way, and (3) airport buildings and facilities located in any of those
areas. Almost all commercial service airports in the United States are owned by local and state
governments or by public entities, such as airport authorities or multipurpose port authorities.
The category of rail, as defined by NIST, includes public transportation (e.g., commuter rail,
subways, light-rail), intercity passenger rail (e.g., rail operated by Amtrak), and freight rail.

7 NIST, Resilience Guide II, p. 81.
8 Ibid., p. 88.

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Passenger rail systems are predominantly owned and operated by the public sector, and freight
rail systems are predominantly owned and operated by the private sector.
The category of waterways includes ports, harbors, and waterways. According to NIST,
waterways are primarily used to import or export goods and materials. The U.S. Army Corps of
Engineers (USACE) estimates that over 95% of U.S. trade, by volume, moves through ports.9
Pipelines delivering natural gas; crude oil; refined products, such as gasoline and diesel; and
natural gas liquids, such as ethane and propane, are part of the transportation infrastructure,
because they transport fuels. Pipeline infrastructure includes gathering (small-diameter, shortlength pipelines that gather oil and gas in production areas), transmission (larger, longer pipelines
that transport products from supply areas to market areas), and distribution (pipelines delivering
product to residential, commercial, or industrial end users). The U.S. Department of
Transportation’s Pipeline and Hazardous Materials Safety Administration oversees the design,
construction, operation, and maintenance of pipelines carrying natural gas or hazardous liquids.

What Codes, Standards, and Regulations May Apply to
Transportation Infrastructure?
According to NIST, several federal agencies, many organizations (e.g., American Society of Civil
Engineers, American Concrete Institute), and others may provide codes, standards, or guidelines
for the construction or repair of different types of transportation infrastructure.10 Table 2 lists
different categories of transportation infrastructure and some of the organizations that may
provide codes, standards, or guidelines. In general, these organizations are not responsible for
regulation or enforcement of these codes, standards, or guidelines. The adoption and enforcement
of infrastructure codes or standards varies. In some cases, a federal agency may regulate and
enforce some codes or standards for construction, repair, or operation and maintenance of some
types of transportation infrastructure.
The application of standards to transportation is complex. For example, highway design and
construction standards vary depending on the type of highway, its ownership, and its funding
source.11 Federal standards apply only to roads, bridges, and tunnels on the National Highway
System (NHS). The NHS is a nationwide designated network of 220,000 miles of arterial
highways and includes the Interstate System highways.12 No matter the source of funding, federal
standards apply to all work, other than routine maintenance, on NHS roads.13 Projects on other
roads and bridges that are eligible for federal highway aid under 23 U.S.C. Chapter I are federally
required to adhere to state standards—but only if the projects use federal highway funds. On any
non-NHS road projects that do not use federal highway funds, the federal standards do not apply,
and the projects adhere to state or local standards as set forth under state and local law.

9 Ibid., p. 94.
10 See the Building Codes FAQ for information about standards related to engineering design and materials, such as

concrete and steel; these standards may apply to buildings and infrastructure.
11 23 U.S.C. §§103, 109, 315, 402. 23 C.F.R. §625. For general materials requirements, see 23 C.F.R. §635 subpart D.
A Federal-Aid Highway is a public highway eligible for assistance under 23 U.S.C. Chapter I. Currently, about
1 million miles of the 4.2 million total miles of U.S. public access highways are Federal-Aid Highways. All bridges
listed in the National Bridge Inventory are eligible for federal aid, as well.
12 See 23 U.S.C. §109(b). See also 23 C.F.R §625.4(a)(2). For documents incorporated by reference, see 23 C.F.R.
§625.4(d).
13 23 C.F.R. §§625.2-625.4. Design documents incorporated by reference are listed in 23 C.F.R. §625(b)-(d).

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The Federal Aviation Administration (FAA) develops engineering, design, and construction
standards for civil airports.14 For example, the FAA develops standards for airfield pavement;
airport visual aids, such as lighting and signs; deicing and other facilities; and fencing.15 In
addition, through FAA-sponsored airport security research programs, there are security guidelines
for airport planning, design, and construction.16
Port infrastructure can generally be divided into two main divisions that dictate the federal
involvement in terms of codes or standards for construction of such facilities: waterside and
landside infrastructure. Waterside infrastructure includes the navigation channels and the
breakwaters and jetties that form a harbor or waterway. These facilities are largely constructed by
USACE, which sets the guidance for their construction in various engineering manuals.17 The
U.S. Coast Guard sets standards and maintains the channel marker buoys and navigation aids
(sounds and lights) on federal waterways to guide mariners.
Landside port infrastructure, such as wharfs and docks where ships tie up, is primarily a state or
local government endeavor, and the standards are largely established by the American Society of
Civil Engineers, specifically the Coasts, Oceans, Ports, and Rivers Institute.18 Port land itself is
owned by state and local governments and is often administered by a public port authority, but
some marine terminals are privately owned. The International Organization for Standardization is
particularly relevant to international container shipping; this body sets standards for the
construction of shipping containers and the gantry cranes that load and unload containers.19 The
World Association for Waterborne Transport Infrastructure is an international body providing
guidance and technical assistance in both landside and waterside port construction.20

14 Federal Aviation Administration (FAA), “Airport Engineering, Design, & Construction,” at https://www.faa.gov/

airports/engineering.
15 FAA, “Airport Design and Engineering Standards,” at https://www.faa.gov/airports/engineering/design_standards.
16 National Safe Skies Alliance, Inc., Program for Applied Research in Airport Security (PARAS), Recommended
Security Guidelines for Airport Planning, Design, and Construction, February 2021.
17 Among the examples for ports and waterways, the manuals cover coastal engineering, deep draft navigation projects,
and designs for seawalls. See U.S. Army Corps of Engineers, “Official Publications of the Headquarters,” at
https://www.publications.usace.army.mil/.
18 ASCE, “Coasts, Oceans, Ports & Rivers Institute (COPRI),” at https://www.asce.org/communities/institutes-andtechnical-groups/coasts-oceans-ports-rivers-institute.
19 International Organization for Standardization, at https://www.iso.org/home.html.
20 World Association for Waterborne Transport Infrastructure, “The World Association for Waterborne Transport
Infrastructure,” at https://www.pianc.org/about.

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Table 2. Transportation Infrastructure: Examples of Responsible Organizations and
Codes, Standards, or Guidelines
Category
Road, bridges, highways, and road
tunnels

Rail

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Purpose

Examples

New construction

Federal Highway Administration
(FHWA): 23 C.F.R. part 265,
“Design Standards for Highways”;
for materials, 23 C.F.R. part 635
subpart D and 23 C.F.R. 625.4 (d)
American Association of State
Highway and Transportation
Officials (AASHTO): A Policy on
Geometric Design of Highways and
Streets; Standard Specifications for
Highway Bridges; A Policy on Design
Standards—Interstate System; and
other documents by reference in 23
C.F.R. §625.4
American Welding Society (AWS),
Structural Welding Code-Reinforcing
Steel

Coastal environment

FHWA

Coastal storm and extreme
weather

AASHTO and FHWA

Coastal storm and extreme
weather

AASHTO and FHWA

Climate change and extreme
weather

FHWA (Order 5520), U.S.
Department of Transportation
(DOT), and U.S. Global Change
Research Program (USGCRP)

Existing infrastructure seismic
retrofit

AASHTO, FHWA, and state and
local entities
For existing infrastructure, see
references under “New
Construction”
For seismic retrofit, see FHWA,
Seismic Retrofitting Manual for
Highway Structures: Part I Bridges and
Part II Retaining Structures, Slopes,
Tunnels, Culverts, and Roadways

Security

Transportation Security
Administration (TSA)

New construction

American Railway Engineering and
Maintenance-of-Way Association
(AREMA), American Public
Transportation Association (APTA)

Signals and communications

AREMA, APTA

Operations and maintenance

Federal Transit Administration
(FTA), Federal Railroad
Administration, AREMA, APTA,
Association of American Railroads

Natural hazards

DOT, FTA, and USGCRP

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Infrastructure Codes, Standards, and Regulations: Frequently Asked Questions

Category
Air

Purpose

Examples

New construction

Federal Aviation Administration
(FAA); FAA may comply with state
or local codes, standards, or
guidelines

Security

TSA

Hazards and emergency plans

FAA

Maintenance of pavement and visual
aid facilities

FAA

Wildlife hazards

FAA

Preconstruction environmental
review

Environmental Protection Agency

Ports, harbors, and waterways

New construction and natural
hazards, such as earthquakes or
tsunamis

AASHTO, World Association for
Waterborne Transport
Infrastructure, American Society of
Civil Engineers, American Concrete
Institute, U.S. Department of
Defense, U.S. Army Corps of
Engineers, American Institute of
Steel Construction, British
Standards Institution, International
Organization for Standardization,
and Overseas Coastal Area
Development Institute of Japan

Pipelines

New construction and natural
hazards, such as earthquakes

Pipeline and Hazardous Materials
Safety Administration, American
Society of Mechanical Engineers,
American Petroleum Institute,
American Gas Association, National
Fire Protection Association, and
ASTM International

Source: NIST, Resilience Guide II, p. 81.

What Is Energy Infrastructure?
According to NIST, energy infrastructure includes electric power systems, natural gas and liquid
fuels systems as they relate to electric power, and emergency and standby power systems.
Pipelines that transport natural gas and liquid fuels are discussed as part of transportation
infrastructure because the engineering standards for pipeline safety and design are administered
by the Pipeline and Hazardous Materials Safety Administration.

What Codes, Standards, and Regulations May Apply to Energy
Infrastructure?
According to NIST, a few organizations may provide codes, standards, or guidelines for the
construction, repair, or operation of different types of energy infrastructure related to electric
power systems (Table 3). The adoption and enforcement of most electric power infrastructure
codes or standards varies and depends on state regulations. Except for the federal reliability
standards, the organizations listed in Table 3 are not responsible for regulation or enforcement of

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the codes, standards, or guidelines. Instead, these industry-led organizations develop standards,
and state or local utility regulators oversee adoption and enforcement of the standards.
The Federal Energy Regulatory Commission (FERC) regulates the interstate trading and
transmission of electric energy and services.21 FERC is also responsible for regulating the
reliability of the bulk power system.22 States have jurisdiction over the retail sale of electricity
and the reliability of the distribution systems of investor-owned utilities by setting standards for
and controlling the investments in distribution networks.23
Table 3. Electric Power Infrastructure: Examples of Responsible Organizations and
Codes, Standards, or Guidelines
Purpose

Examples

New Construction

National Electric Safety Code and Rural Utilities Service office of the U.S. Department of
Agriculture

Hazards

American Society of Civil Engineers and American National Standards Institute (ANSI)

Materials

ANSI 05 (2008) for wood poles and ANSI C29 (2013) for insulators

Planning and
Operations

Federal Energy Regulatory Commission and North American Electric Reliability Corporation

Source: NIST, Resilience Guide II, pp. 149-157.
Notes: Electric power infrastructure includes electric power systems, natural gas and liquid fuels systems as they
relate to electric power, and emergency and standby power systems.

What Is Communications Infrastructure?
According to NIST, communications infrastructure includes wireline, wireless, cable and
broadcast, and satellite networks (Figure 1). Wireline and cable communications include wireline
and cable for voice, video, and/or data transfers. Distribution centers and network hubs, typically
with their own power supplies, provide services through wires (e.g., copper, coaxial cable, fiberoptic cable) that are deployed underground or overhead. Wireless communications for voice,
video, and/or data rely on a cellular tower and radio tower network, typically with their own
facilities and power supplies, to communicate information via radio waves. Broadcast
communications rely on a radio tower network to communicate information via radio waves.
Emergency communications include the Federal Emergency Management Agency’s (FEMA’s)
911 services through wireline infrastructure and Integrated Public Alert and Warning System
through wireline, wireless, cable, broadcast, and satellite communications infrastructure.24

21

FERC does not regulate electric power infrastructure in Alaska or Hawaii because there is no interstate trading or
transmission.
22 For an overview of the reliability standards overseen by FERC, see CRS Report R45764, Maintaining Electric
Reliability with Wind and Solar Sources: Background and Issues for Congress, by Ashley J. Lawson.
23 For more information about the regulation of rates, services, and reliability of electrical systems, see National
Academies of Sciences, Engineering and Medicine, The Future of Electric Power in the United States, 2021, Chapter 3
and Table 3.1.
24 FirstNet Authority, “9-1-1/Emergency Communications,” at https://www.firstnet.gov/public-safety/firstnet-for/9-1-1emergency-communications; Federal Emergency Management Agency (FEMA), “Integrated Public Alert & Warning
System,” at https://www.fema.gov/emergency-managers/practitioners/integrated-public-alert-warning-system; and CRS
Report R47521, Electricity: Overview and Issues for Congress, by Ashley J. Lawson.

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Figure 1. Examples of Communications Infrastructure

Source: NIST, Resilience Guide II, Figure 15-2. Modified by CRS.
Notes: The Services and Applications in the top panel list some of the services and applications available via
voice, video, or data. The Core Network in the middle panel refers to the high-capacity communications facilities
that connect primary nodes. Core or backbone networks provide paths to exchange information between subnetworks. The Access Networks in the bottom panel connect the end customers to the core network. Access
networks use different technologies. For broadcasting, the network uses radio towers, satellites, and buildings
for equipment and power supplies. For cable, the network uses wirelines. For satellite, the network uses satellite
dishes and satellites. For wireless, the network uses cell towers, radio towers, and buildings for equipment and
power supplies. For wireline, the network uses wirelines. This graphic approximates communications
infrastructure and does not show all components. VoIP stands for voice over Internet Protocol.

What Codes, Standards, and Regulations May Apply to
Communications Infrastructure?
Codes and standards for communications infrastructure may establish minimum acceptable
criteria for design and construction (Table 4). In particular, the American National Standards
Institute/Telecommunications Industry Association, the Network Equipment Building Standards,
and the Institute of Electrical and Electronics Engineers’ National Electrical Safety Code provide
codes and standards for communications infrastructure.25 The American Society of Civil
25 Telecommunications Industry Association (TIA), “Standards,” at https://tiaonline.org/what-we-do/standards/; and

(continued...)

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Engineers in their all hazards resistant standard, ASCE 7, sets minimum design loads and
associated criteria for buildings and other structures used by communications infrastructure (see
the Building Codes FAQ).26
Multiple regulatory entities (federal, state, and local) have authority over communications
infrastructure, and evolving technologies have led to changes in regulatory jurisdiction.27 The
Federal Communications Commission (FCC) regulates interstate and international
communication services and has jurisdiction over communications by telephone, cable, radio,
wireless, wireline, and internet.28 The FCC advisory group on Communications Security,
Reliability, and Interoperability Council promotes best practices for reliability and resilience, but
the FCC does not enforce any codes or standards for communications infrastructure.29
State agencies have authority over local wireline telephone services, and most often a public
service commission oversees communications infrastructure at the state level. In addition, state
departments of transportation may have jurisdiction over communications infrastructure
constructed within rights-of-way adjacent to roads. Local agencies may have jurisdiction for
enforcing local building codes and may regulate placement or construction of radio towers, cell
towers, electrical equipment, standby power, and fuel storage at communications facilities. Large
cities may regulate the construction and location of communications infrastructure through city
transportation departments or other city agencies.
Table 4. Communications Infrastructure: Examples of Responsible Organizations
and Codes, Standards, or Guidelines
Purpose

Examples

Specifies loading and strength requirements for antennae and
their supporting structures (e.g., cell and broadcast towers)

TIA-222-G Structural Standards for Antennae
Supporting Structures and Antennae

Provides minimum loading criteria for buildings housing critical
communications equipment (i.e., communications buildings) and
loading criteria for towers

ASCE 7 Minimum Design Loads for Buildings
and Other Structures

Standard providing requirements for safe installation, operation,
and maintenance of electrical power, standby power, and
communication systems (overhead and underground wiring)

IEEE National Electrical Safety Code

Source: NIST, Resilience Guide II, Table 15-2.
Notes: TIA = Telecommunications Industry Association; ASCE = American Society of Civil Engineers; IEEE =
Institute of Electrical and Electronics Engineers.

Institute of Electrical and Electronics Engineers, The National Electrical Safety Code (NESC), 092-1-22, 2022, at
https://standards.ieee.org/wp-content/uploads/import/documents/other/NESC_overview.pdf.
26 ASCE, “ASCE 7,” at https://www.asce.org/publications-and-news/asce-7.
27 NIST, Resilience Guide II.
28 Federal Communications Commission, “Federal Communications Commission Homepage,” at https://www.fcc.gov/.
29 See Table 15-3 in NIST, Resilience Guide II, for examples of best practices for communications infrastructure.

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What Is Drinking Water and Wastewater Infrastructure?
Water for drinking, cooking, hygiene, flushing toilets, laundry, and other purposes is supplied
through water infrastructure from surface or ground waters.30 Wastewater or used water from
residential, commercial, government, or other sources is removed through wastewater
infrastructure—typically pipes, pumps, and treatment facilities—before discharge into the
environment.31 In general, water infrastructure consists of supply, transmission, treatment,
pumping, storage, and distribution, and wastewater infrastructure consists of collection,
conveyance, pumping, treatment, and discharge.32 In addition, wastewater infrastructure can
include infrastructure for stormwater.

What Codes, Standards, and Regulations May Apply to Drinking
Water and Wastewater Infrastructure?
Codes, standards, and guidelines for drinking water and wastewater infrastructure may be
provided by state and local building codes, the American Society of Civil Engineers (ASCE),
American Concrete Institute, American Water Works Association, American Lifeline Alliance,
Water Environment Federation, Water Research Foundation, and Multidisciplinary Center for
Earthquake Engineering Research, among others (see the Building Codes FAQ).33 Table 5 lists
examples of some such organizations and the standards or guidelines they provide for different
parts of the water or wastewater infrastructure.
Table 5. Drinking Water and Wastewater Infrastructure: Examples of Responsible
Organizations and Codes, Standards, or Guidelines
Purpose

Examples

Design loads for buildings and related structures and guidelines for earthquake
design for pipelines

American Society of Civil
Engineers (ASCE 7)

Standards for storage and treatment facilities constructed with concrete

American Concrete Institute

Standards for storage, facilities operation and management, and emergency
preparedness practices; guidelines for buried steel pipes, emergency power,
drought and earthquake preparedness and response, and business continuity plans
for water utilities

American Water Works
Association

Guidelines for facility performance, design of buried steel pipes, earthquake design
of pumping and treatment systems

American Lifeline Alliance

Guidelines for emergency planning, response, and recovery; municipal wet
weather strategies; municipal wastewater treatment systems; upgrades for
treatment systems; and prevention and control of sewer system overflows

Water Environment
Federation

NIST, Resilience Guide II, p. 198. For a definition of groundwater, see U.S. Geological Survey, “Groundwater:
What Is Groundwater?,” at https://www.usgs.gov/special-topics/water-science-school/science/groundwater-whatgroundwater.
31 NIST, Resilience Guide II, p. 198. Some wastewater may be recycled for reuse. See Environmental Protection
Agency (EPA), “Basic Information About Water Reuse,” at https://www.epa.gov/waterreuse/basic-information-aboutwater-reuse.
32 NIST, Resilience Guide II, pp. 202 and 209.
33 ASCE, “American Society of Civil Engineers,” at https://www.asce.org/; American Concrete Institute, at
https://www.concrete.org/; Water Research Foundation, at https://www.waterrf.org/; American Water Works
Association, at https://www.awwa.org/; and Multidisciplinary Center for Earthquake Engineering Research (MCEER),
“Engineering solutions for earthquake loss reduction,” at https://www.nsf.gov/pubs/2000/nsf00137/nsf00137m.htm.
30

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Purpose

Examples

Guidelines for fragility analysis of water supply systems and for earthquake design
of pipelines

Multidisciplinary Center for
Earthquake Engineering
Research

Guidelines for emergency drinking water supply and business continuity planning
for water utilities

Environmental Protection
Agency

Source: NIST, Resilience Guide II, Table 16-4.
Notes: For more about ASCE 7 see ASCE, “ASCE 7,” at https://www.asce.org/publications-and-news/asce-7.

The U.S. Environmental Protection Agency (EPA) establishes requirements for drinking water
quality under the authority of the Safe Drinking Water Act (SDWA; codified generally as 42
U.S.C. et seq. §§300f-300j) and for wastewater effluent quality under the authority of the Federal
Water Pollution Control Act or Clean Water Act (CWA; codified generally as 33 U.S.C. §§12511387).34 A state agency that meets certain criteria may be granted primary enforcement
responsibility for these requirements. In addition to meeting SDWA and CWA requirements,
water or wastewater systems may have to comply with state or local requirements such as
regulations, codes, standards, or guidelines, or such systems may voluntarily adopt codes from
other organizations.

What Are Dams and Levees?
The nation’s dams were constructed for various and sometimes multiple purposes. The most
common type of dam is an earthen dam, which is made from natural soil or rock or from mining
waste materials. Other dams include concrete dams, tailings dams (i.e., dams that store mining
byproducts), overflow dams (i.e., dams regulating downstream flow), and dikes (i.e., dams
constructed at a low point of a reservoir of water).35 The National Inventory of Dams (NID), a
database of dams in the United States that is maintained by USACE, lists over 91,000 dams.36 For
the purposes of inclusion in the NID, a dam is defined as any artificial barrier that has the ability
to impound water, wastewater, or any liquid-borne material, for the purpose of storage or control
of water that (1) is at least 25 feet in height with a storage capacity of more than 15 acre-feet; (2)
is greater than 6 feet in height with a storage capacity of at least 50 acre-feet; or (3) poses a
significant threat to human life or property, should it fail (i.e., high or significant hazard
dams).37 Thousands of dams do not meet these criteria; therefore, they are not included in the
NID. Most dams in the United States are owned by private entities, state or local governments, or
public utilities. Federal agencies reported owning 3% of dams listed in the NID, including some
of the largest dams in the United States.
The United States has approximately 100,000 miles of built urban, rural, and agricultural
engineered earthen embankments, often referred to as levees, floodwalls (which are constructed
of metal or reinforced concrete), and engineered coastal dunes and berms. These structures
collectively are often referred to as levees when discussing types of infrastructure, because they
share the purpose of excluding water from a landscape to protect property and infrastructure from
34 EPA, “Safe Drinking Water Act (SDWA),” at https://www.epa.gov/sdwa; and EPA, “Summary of the Clean Water

Act,” at https://www.epa.gov/laws-regulations/summary-clean-water-act.
35 United States Society on Dams, “Types of Dams,” at https://www.ussdams.org/dam-levee-education/overview/typesof-dams/.
36 U.S. Army Corps of Engineers (USACE), “National Inventory of Dams (NID),” at https://nid.usace.army.mil/#/. NID
data in this report were accessed on November 14, 2022, with NID showing data as of November 3, 2022.
37 33 U.S.C. §467.

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flooding. Some of these levees are being repaired after damage or rehabilitated to sustain their
performance. Federal, state, local, and private entities also continue to plan and construct new
levees.
Historically, engineering practices for levee design and construction have varied across the
United States, with original construction of many levees predating modern engineering practices.
Municipalities and agricultural districts are responsible for the operation and maintenance of
many of these structures; other levees may be privately owned. USACE maintains 4,200 miles of
levees, and a few other federal agencies (e.g., Bureau of Reclamation, National Park Service)
maintain an unknown number of levees.

What Codes, Standards, and Regulations May Apply to Dams?
Dams were built to engineering and construction standards and regulations corresponding to the
time of their construction. Although construction of some dams may predate modern engineering
practices (approximately 2,300 National Inventory of Dams [NID] dams were built before 1900),
over 43,000 dams—nearly half of the dams in the NID—were built between 1950 and 1980.38
After this period, construction of new dams slowed (e.g., the NID lists approximately 4,700 dams
built since 2000). Some dams, including older dams, may not meet current dam safety standards,
which have evolved as scientific data and engineering have improved over time.39 Dam owners
generally are responsible for operation and maintenance of these structures and for investing in
dam rehabilitation (i.e., bringing a dam up to current safety standards) and repair. FEMA, federal
agencies with large portfolios of sizable dams (e.g., USACE, Bureau of Reclamation), and the
Association of State Dam Safety Officials also publish various federal guidelines, technical
manuals, and factsheets that other dam owners may use for operation and maintenance and
rehabilitation and repair projects.40
No single agency regulates all dams. The National Dam Safety Program Act, as amended (Section
215 of the Water Resources Development Act of 1996; P.L. 104-303; 33 U.S.C. §§467f et seq.),
established the National Dam Safety Program (NDSP) as a federal program, administered by
FEMA, to facilitate dam safety activities and collaboration among the various federal agencies,
states, and owners with responsibility for dam safety.41 Each federal dam is regulated according to
the policies and guidance of the individual federal agency that owns the dam, and
FEMA’s Federal Guidelines for Dam Safety provide basic guidance for federal agencies’ dam
safety programs.42 Every state (except Alabama) in the United States has established a regulatory
program for dam safety, as has Puerto Rico.43 Collectively, these programs have regulatory

38 NID as of a November 3, 2022, update.
39 National Research Council (NRC), Dam and Levee Safety and Community Resilience: A Vision for Future Practice,

2012, at https://doi.org/10.17226/13393.
40
For example, see FEMA, “National Dam Safety Program Publications,” at https://www.fema.gov/emergencymanagers/risk-management/dam-safety/publications; Key Documents at USACE, “Dam Safety Program,” at
https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/; Association of State Dam Safety Officials
(ASDSO), “Dam Safety Resource Database,” at https://www.damsafety.org/resource-center.
41 For more information on dam safety, see CRS Report R45981, Dam Safety Overview and the Federal Role, by Anna
E. Normand. For information on the National Dam Safety Program, see FEMA, “National Dam Safety Program,” at
https://www.fema.gov/national-dam-safety-program.
42 FEMA, Federal Guidelines for Dam Safety Risk Management, FEMA P-1025, 2015, at https://www.fema.gov/sites/
default/files/2020-08/fema_dam-safety_risk-management_P-1025.pdf.
43 FEMA, The National Dam Safety Program: Biennial Report to the United States Congress, Fiscal Years 2018-2019,
November 2022, at https://www.fema.gov/sites/default/files/documents/fema_ndsp-report-congress-fy18-fy19.pdf.

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authority over 71% of NID dams.44 The NDSP does not mandate uniform standards across dam
safety programs but has developed the Model State Dam Safety Program, a guideline for
developing state dam safety programs.45 Congress also has enacted legislation for certain federal
agencies to regulate activities that may use dams, such as hydropower projects, certain mining
activities, and nuclear facilities.46
Federal agencies traditionally approached dam safety through a deterministic, standards-based
approach by mainly considering structural integrity to withstand maximum probable floods and
maximum credible earthquakes. Many agencies with large dam portfolios (e.g., Bureau of
Reclamation, USACE, FERC) have since moved from this solely standards-based approach for
their dam safety programs to a portfolio risk management approach. According to FEMA, “a riskmanagement approach seeks to improve the resilience of dam infrastructure and mitigate failure
of dams and related structures through inspection programs, risk reduction measures, and
rehabilitation and repair.”47 This approach prioritizes rehabilitation and repair efforts for
structures where failure would pose the greatest threat to life and property. Some state dam safety
agencies also are working to incorporate a risk management approach (e.g., Colorado).48

What Codes, Standards, and Regulations May Apply to Levees?
There is no broadly applicable national standard or requirement for levee construction or
maintenance. Pursuant to direction in P.L. 113-121 in 2014, USACE and FEMA are working on
developing national levee safety guidelines to serve as voluntary best practices.49 Ultimately,
levee owners are responsible for maintaining their levees.
USACE has developed regulations and guidance documents for levee design, construction,
evaluation, operation, and maintenance. USACE provides for some regional differences tailored
to different water-loading conditions (e.g., riverine versus coastal levees), geologic variability,
climate, and hydrology (e.g., arid versus temperate environments), as well as environmental
factors (e.g., vegetation management).50 USACE and some other federal agencies use these
documents to guide their work on levees. Other federal agencies also have developed guidance
44 NID as of a November 3, 2022, update. States define their own regulatory jurisdiction (the height, volume, and type

of dams to be regulated): state laws may exclude the regulation of certain dams in the NID. Personal correspondence
between CRS and ASDSO on August 30, 2019. ASDSO, Summary of State Laws and Regulations on Dam Safety, May
2022, at https://damsafety-prod.s3.amazonaws.com/s3fs-public/files/FINAL%20%202020%20Update%20State%20Laws%20and%20Regulations%20Summary_0.pdf.
45 ASDSO notes that a task force has updated the Model Dam Safety Program and has provided FEMA the draft update
for final review. Personal correspondence between CRS and ASDSO on October 17, 2022. FEMA, Model State Dam
Safety Program, 2007, at https://damsafety-prod.s3.amazonaws.com/s3fs-public/files/
FEMA%20316_%20Model%20State%20Dam%20Safety%20Program_2007.pdf.
46 For example, under the Federal Power Act (16 U.S.C. §§791a-828c), FERC has the authority to issue licenses for the
construction and operation of hydroelectric projects, among other things. Many of these projects involve dams, some of
which may be owned by a state or local government.
47
FEMA, The National Dam Safety Program: Biennial Report to the United States Congress, Fiscal Years 2018-2019,
November 2022, at https://www.fema.gov/sites/default/files/documents/fema_ndsp-report-congress-fy18-fy19.pdf.
48 State of Colorado, Department of Natural Resources, Guidelines for Comprehensive Dam Safety Evaluation (CDSE)
Risk Assessments & Risk Informed Decision Making (RIDM), March 8, 2021, at https://dnrweblink.state.co.us/dwr/
ElectronicFile.aspx?docid=3566811&dbid=0.
49 For more information on development of the levee safety guidelines, see USACE and FEMA, “National Levee
Safety Program,” at https://www.leveesafety.org/pages/nlsg.
50 European Club of International Commission on Large Dams, Working Group on Levees and Flood Defences,
European and U.S. Levees and Flood Defences: Characteristics, Risks and Governance, July 1, 2018, Chapter 12, at
https://www.barrages-cfbr.eu/IMG/pdf/
lfd_inventory_of_characteristics_risks_and_governance_full_report_final_20190308.pdf.

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for their own levee-related programs, such as the Dike and Levee practice standard for the U.S.
Department of Agriculture’s Natural Resources Conservation Service. Some states use the
USACE documents to guide levee construction in their states, whereas other states maintain their
own documents and criteria or adopt other guidance. A few states, such as California, have
established design and safety criteria or standards for levees.51
In P.L. 113-121, Congress authorized FEMA to support the establishment or improvement of state
and tribal levee safety programs. Although this initiative has remained largely unfunded, federal
agencies have advanced related efforts to improve levee safety, such as the release of a National
Levee Database and the 2019 publication for emergency managers of a Guide to Public Alerts
and Warning for Dam and Levee Emergencies. USACE and representatives from five other
countries launched in 2013 an International Levee Handbook identifying good practice on levees
based on current knowledge and experience from six countries.
Federal flood insurance regulations may shape how some levees are designed, operated, and
maintained, because levees can reduce flood insurance requirements (see the Building Codes
FAQ).52 For a levee, floodwall, or coastal dune or berm to appear on a National Flood Insurance
Program (NFIP) Flood Insurance Rate Map, the levee owner is required to obtain a certification
consisting of documentation, signed and sealed by a registered professional engineer, that the
levee meets the NFIP requirements at 44 C.F.R. §65.10, “Mapping of Areas Protected by Levee
Systems.”53

What Is the Federal Flood Risk Management Standard?
The Federal Flood Risk Management Standard (FFRMS) is a flood resilience standard that is
required for federally funded projects, which are defined as actions where federal funds are used
for new construction, for substantial improvement, or to address substantial damage to structures
and facilities, including infrastructure.54 The floodplain management policy for the FFRMS was
first set forth in 2015 by President Obama’s Executive Order (E.O.) 13690, revoked in 2017 by
President Trump’s E.O. 13807, and reinstated in 2021 by President Biden’s E.O. 13990. For
51 For example, in the early 2010s, California developed Urban Levee Design Criteria and Urban Level of Protection

Criteria. The state also encourages levee designers and owners to review and consider the USACE documents.
California relies on the due diligence of local governments; that is, the state does not enforce the Urban Level of
Protection Criteria.
52 Another federal program that may shape how participating nonfederal levees are operated and maintained is referred
to as the P.L. 84-99 Rehabilitation Program, operated by USACE. The program provides federal funding for repairs of
participating levees. The participating levees must pass an inspection of various components of the levee system to be
eligible for assistance. The program’s regulations are published at 33 C.F.R. §§203.41-203.52. For more information on
this program and other federal levee safety activities, see CRS In Focus IF12404, Nonfederal Levee Safety: Primer,
Status, and Considerations, by Nicole T. Carter and Diane P. Horn.
53 These requirements include levee design and operation and maintenance criteria related to reducing the risk of
flooding from a 1%-annual-chance flood, such as foundation stability criteria and operational plan criteria for closures
in a levee system. FEMA uses the certification to accredit a levee for purposes of appearing on a Flood Insurance Rate
Map as providing a specified level of protection and for the area behind the levee to not be mapped into the special
flood hazard area. Properties in a special flood hazard area are required to purchase flood insurance as a condition of
receiving a federally backed mortgage.
54 See CRS Insight IN12193, The Federal Flood Risk Management Standard (FFRMS), by Diane P. Horn and Nicole
T. Carter, for a summary of the FFRMS. FEMA, Guidelines for Implementing Executive Order 11988, Floodplain
Management, and Executive Order 13690, Establishing a Federal Flood Risk Management Standard and a Process for
Further Soliciting and Considering Stakeholder Input, October 8, 2018, p. 16, at https://www.fema.gov/sites/default/
files/documents/fema_implementing-guidelines-EO11988-13690_10082015.pdf (hereinafter, Guidelines for
Establishing an FFRMS). Note that the FEMA guidelines do not require the use of the National Flood Insurance
Program’s definitions of substantial damage and substantial improvement (footnotes 98 and 99).

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FFRMS compliance, the floodplain for federally funded projects is determined using one of three
currently available approaches: (1) the freeboard value approach;55 (2) the 500-year floodplain;56
or (3) the climate-informed science approach (CISA).57 Individual federal agencies may develop
or update procedures and regulations tailored to their programs to account for the reinstated
FFRMS. For example, the EPA determined the FFRMS would go into effect starting in FY2022,
applying to certain projects funded by State Revolving Fund capitalization grants (including
funding from the Infrastructure Investment and Jobs Act [P.L. 117-58]).58 For its implementation
of the FFRMS, USACE is using CISA methods set out in agency guidance to evaluate climate
change impacts on coastal and inland flood hazard. USACE indicates that it infers the FFMRS to
apply to vertical infrastructure, such as buildings, rather than horizontal infrastructure, such as
levees or walls.59 As of July 2023, the various other agencies providing federal funding to
infrastructure projects discussed herein had not made publicly available information on the
progress they have made implementing or otherwise complying with the FFRMS.

55 The floodplain obtained through the freeboard value approach in the FFRMS is defined as the elevation and flood

hazard area that result from adding an additional 2 feet to base flood elevation (BFE) for noncritical actions and adding
an additional 3 feet to BFE for critical actions, which are defined as any activity for which even a slight chance of
flooding would be too great. FEMA, Guidelines for Establishing an FFRMS, provides additional guidance to assist
agencies in determining whether an action is critical.
56 The 500-year floodplain is defined as the area subject to flooding by the 0.2%-annual-chance flood.
57 Defined as the elevation and flood hazard area that result from using a climate-informed science approach that uses
the best-available, actionable hydrologic and hydraulic data and methods that integrate current and future changes in
flooding based on climate science.
58 Memorandum from Anita Maria Thompkins, Director, Drinking Water Protection Division, Office of Ground and
Drinking Water, and Raffael Stein, Director, Water Infrastructure Division, Office of Wastewater Management, to
Water Division Directors, Regions I-X, “Re-instatement of Federal Flood Risk Management Standard for State
Revolving Fund Programs,” EPA, September 15, 2022, at https://www.epa.gov/system/files/documents/2022-09/
Federal%20Flood%20Risk%20Managment%20Standard%20.pdf.
59 USACE, “Federal Flood Risk Management Standard,” at https://www.iwr.usace.army.mil/Missions/Flood-RiskManagement/Flood-Risk-Management-Program/About-the-Program/Policy-and-Guidance/Federal-Flood-RiskManagement-Standard/.

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Appendix. Abbreviation Table
Table A-1 contains a list of abbreviations used in this report.
Table A-1. Abbreviations Used in This Product
Abbreviation

Full Name

AASHTO

American Association of State Highway and
Transportation Officials

ANSI

American National Standards Institute

AREMA

American Railway Engineering and Maintenance-of-Way
Association

ASCE

American Society of Civil Engineers

BFE

Base Flood Elevation

DOT

Department of Transportation

EPA

Environmental Protection Agency

FAA

Federal Aviation Administration

FAQ

Frequently asked question

FCC

Federal Communications Commission

FEMA

Federal Emergency Management Agency

FERC

Federal Energy Regulatory Commission

FFRMS

Federal Flood Risk Management Standard

FHWA

Federal Highway Administration

IEEE

Institute of Electrical and Electronics Engineers

NDSP

National Dam Safety Program

NFIP

National Flood Insurance Program

NID

National Inventory of Dams

NIST

National Institute of Standards and Technology

SDWA

Safe Drinking Water Act (P.L. 93-523)

USACE

U.S. Army Corps of Engineers

USGCRP

U.S. Global Change Research Program

TIA

Telecommunications Industry Association

TSA

Transportation Security Administration

Source: Congressional Research Service.

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Author Information
Linda R. Rowan, Coordinator
Analyst in Natural Resources and Earth Sciences

Robert S. Kirk
Specialist in Transportation Policy

Nicole T. Carter
Specialist in Natural Resources Policy

Ashley J. Lawson
Specialist Energy Policy

Corrie E. Clark
Specialist in Energy Policy

William J. Mallett
Specialist in Transportation Policy

John Frittelli
Specialist in Transportation Policy

Anna E. Normand
Analyst in Natural Resources Policy

Jill C. Gallagher
Analyst in Telecommunications Policy

Paul W. Parfomak
Specialist in Energy Policy

Diane P. Horn
Specialist in Flood Insurance and Emergency
Management

Jonathan L. Ramseur
Specialist in Environmental Policy

Elena H. Humphreys
Analyst in Environmental Policy

Rachel Y. Tang
Analyst in Transportation and Industry

Key Policy Staff
Area of Expertise

Name

Phone

Email

Air—Transportation Infrastructure

Rachel Y. Tang

202-707-7875

rtang@crs.loc.gov

Codes—General, Science and
Technology, Resilience

Linda R. Rowan

202-707-0602

lrowan@crs.loc.gov

Communications Infrastructure

Jill C. Gallagher

202-707-1024

jgallagher@crs.loc.gov

Dams—Water Infrastructure

Anna E. Normand

202-707-9846

anormand@crs.loc.gov

Drinking Water—Water
Infrastructure

Elena H. Humphreys

202-707-2054

ehumphreys@crs.loc.gov

Electric Power—Energy
Infrastructure

Ashley J. Lawson

202-707-2596

alawson@crs.loc.gov

Energy Infrastructure

Corrie E. Clark

202-707-7213

cclark@crs.loc.gov

Flood Insurance

Diane P. Horn

202-707-3472

dhorn@crs.loc.gov

Levees—Water Infrastructure

Nicole T. Carter

202-707-0854

ncarter@crs.loc.gov

Pipelines—Transportation
Infrastructure

Paul W. Parfomak

202-707-0030

pparfomak@crs.loc.gov

Ports, Harbors, and Waterways—
Transportation Infrastructure

John Frittelli

202-707-7033

jfrittelli@crs.loc.gov

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Roads and Rails—Transportation
Infrastructure

Robert S. Kirk
William J. Mallett

202-707-7769
202-707-2216

rkirk@crs.loc.gov
wmallett@crs.loc.gov

Wastewater—Water Infrastructure

Jonathan L. Ramseur

202-707-7919

rramseur@crs.loc.gov

Disclaimer
This document was prepared by the Congressional Research Service (CRS). CRS serves as nonpartisan
shared staff to congressional committees and Members of Congress. It operates solely at the behest of and
under the direction of Congress. Information in a CRS Report should not be relied upon for purposes other
than public understanding of information that has been provided by CRS to Members of Congress in
connection with CRS’s institutional role. CRS Reports, as a work of the United States Government, are not
subject to copyright protection in the United States. Any CRS Report may be reproduced and distributed in
its entirety without permission from CRS. However, as a CRS Report may include copyrighted images or
material from a third party, you may need to obtain the permission of the copyright holder if you wish to
copy or otherwise use copyrighted material.

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Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/crs%3AR47666. Public record. Not legal advice.
