LIQUEFIED PETROLEUM GAS (LPG) REGULATIONS

1

DEPARTMENT OF LABOR AND EMPLOYMENT

Division of Oil and Public Safety

LIQUEFIED PETROLEUM GAS (LPG) REGULATIONS

7 CCR 1101-15

[Editor’s Notes follow the text of the rules at the end of this CCR Document.]

_________________________________________________________________________

ARTICLE 1

GENERAL PROVISIONS

Section 1-1

Basis and Purpose

The basis and purpose of these regulations is to: adopt nationally-recognized codes and standards; to

add or clarify terminology; to add or clarify the duties of LPG facility owners, delivery drivers and certain

users; and to improve the effectiveness of the division’s LPG program.

Section 1-2

Technical Rationale

The technical requirements of these regulations are generally accepted as national and international

codes and standards governing the minimum levels of acceptability for the design, construction, location

installation and operation of equipment for storing, handling, transporting, dispensing and utilizing LPG.

The adoption of these consistent standards is necessary for the preservation of the public health, safety,

and welfare of the citizens of Colorado.

Section 1-3

Statutory Authority

The amendments to these regulations are created pursuant to Sections 8-20-302, 8-20-402 and 8-20-405

of the Colorado Revised Statutes.

Section 1-4

Effective Date

These amended regulations shall be effective on November 30, 2024. The previous versions of these

regulations were effective September 30, 2017, May 1, 2017, February 1, 2011, and September 1, 2005.

Section 1-5

Codes Incorporated by Reference Section

1-5-1

Codes Incorporated by Reference The following codes are incorporated by reference:

(a)

NFPA 58, Liquefied Petroleum Gas Code, 2024 edition.

(b)

NFPA 54, National Fuel Gas Code, 2024 edition.

(c)

NFPA 30A, Code for Motor Fuel Dispensing Facilities & Repair Garages, 2024 edition.

(d)

NFPA 59, Utility LP-Gas Plant Code, 2024 edition.

(e)

NFPA 1192, Standard on Recreational Vehicles, 2021 edition.

5-1

Codes Incorporated by Reference The following codes are incorporated by reference:

(a)

NFPA 58, Liquefied Petroleum Gas Code, 2024 edition.

(b)

NFPA 54, National Fuel Gas Code, 2024 edition.

(c)

NFPA 30A, Code for Motor Fuel Dispensing Facilities & Repair Garages, 2024 edition.

(d)

NFPA 59, Utility LP-Gas Plant Code, 2024 edition.

(e)

NFPA 1192, Standard on Recreational Vehicles, 2021 edition.

(f)

NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing

and Measuring Devices, 2024 edition.

Code of Colorado Regulations

Secretary of State

State of Colorado

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(g)

NIST Handbook 130, Uniform Laws and regulations in the Areas of Legal Metrology and Engine

Fuel Quality 2024 edition.

All NFPA codes incorporated by reference may be purchased from:

National Fire Protection Association

1 Batterymarch Park

Quincy, Massachusetts

USA 02169-7471

1-800-344-3555

http://www.nfpa.org

All NIST codes incorporated by reference may be purchased from:

National Institute of Standards and Technology

100 Bureau Drive

Gaithersburg, MD. 20899

301-975-4004

http://www.nist.gov

Or for free download:

https://www.nist.gov/pml/owm/publications/nist-handbooks

Section 1-5-2 Inspection of Incorporated Codes

Interested parties may inspect and obtain copies of excerpts of the referenced incorporated materials for

a reasonable charge by contacting the Division of Oil and Public Safety at

633 17th Street, Suite 500

Denver, CO 80202

303-318-8525

cdle_ops@state.co.us

Section 1-5-3 Later Amendments not Included

These regulations do not include later amendments to or editions of the incorporated material.

Section 1-6

Definitions

Terms in these regulations shall have the same meaning as those found in Title 8, Article 20 and Title 9,

Article 4 of the Colorado Revised Statutes. In addition, unless the context otherwise requires:

AHJ -- Authority Having Jurisdiction

API – American Petroleum Institute

ncluded

These regulations do not include later amendments to or editions of the incorporated material.

Section 1-6

Definitions

Terms in these regulations shall have the same meaning as those found in Title 8, Article 20 and Title 9,

Article 4 of the Colorado Revised Statutes. In addition, unless the context otherwise requires:

AHJ -- Authority Having Jurisdiction

API – American Petroleum Institute.

ASME International – Formerly the American Society of Mechanical Engineers (ASME).

ASTM International – Formerly the American Society for Testing and Materials.

CETP — Certified Employee Training Program

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Condemned – A condemned container assembly and piping system is one determined by a

state inspector to be so unsafe that further use is prohibited until it is satisfactorily

repaired or replaced.

Container assembly – A container assembly includes US Department of Transportation (DOT)

and ASME containers, commonly known as tanks or cylinders.

CRS – Colorado Revised Statutes.

Cylinder -- A portable container (usually DOT) with a marked water capacity of 1000 lb (454 kg)

or less, designed to transport and store LP-Gas.

Division – The Division of Oil and Public Safety, the regulatory agency of the Colorado

Department of Labor and Employment having jurisdiction over LPG container assemblies

and piping systems as defined in these regulations.

DOT – United States Department of Transportation.

Existing installation – Any LPG container assembly and piping system that has been placed

into service and received its initial inspection by a state inspector.

FSA – Fire Safety Analysis, also known as Product Release Prevention and Incident

Preparedness Review or Incident Prevention Review. An FSA is a plan incorporating the

various safety features used to control the product and operations at the facility, an

evaluation of hazard to the immediate neighborhood and a tool to be used by an

emergency response agency, such as the local fire department

ctor.

FSA – Fire Safety Analysis, also known as Product Release Prevention and Incident

Preparedness Review or Incident Prevention Review. An FSA is a plan incorporating the

various safety features used to control the product and operations at the facility, an

evaluation of hazard to the immediate neighborhood and a tool to be used by an

emergency response agency, such as the local fire department.

Handling – Transferring LPG into a DOT container or an ASME tank. Handling does not include

transporting of LPG.

Incident – A reportable accident, as defined by 8-20-407(1), CRS.

Incident prevention review – See definition under FSA.

Installer – Person or company responsible for setting up for use any container assembly and

piping system required by LPG statute or regulation to be inspected.

Interruption of service – An interruption of gas service where pressure in the fuel gas piping is

below a point that the appliances can no longer operate, including an out-of-gas call,

except for when conducting a test.

LPG - Liquefied Petroleum Gas (LP-Gas). Any material having a vapor pressure not exceeding

that allowed for commercial propane that is composed predominantly of the following

hydrocarbons, either by themselves (except propylene) or as mixtures: propane,

propylene, butane (normal butane or isobutane), and butylenes.

LPG facility – Facility that has an LPG container assembly and piping system.

LPG liquid meter – A meter designed to measure LPG liquid, with an active National Type

Evaluation Program (NTEP) Certificate of Conformance (CC), which includes a metering

chamber or device, vapor eliminator, differential valve and register.

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LPG facility – Facility that has an LPG container assembly and piping system.

LPG liquid meter – A meter designed to measure LPG liquid, with an active National Type

Evaluation Program (NTEP) Certificate of Conformance (CC), which includes a metering

chamber or device, vapor eliminator, differential valve and register.

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Marking – Container information located on container name-plate or stamped into the shell or

collar of an LPG container. Marking is done in accordance with the regulations of DOT,

ASME or API-ASME and is done by the original container manufacturer or a repair

organization authorized by the National Board to utilize the “R” code symbol stamp.

NACE – The National Association of Corrosion Engineers.

National Board – The National Board of Boiler and Pressure Vessel Inspectors.

New installation – Any container assembly that has been placed into service but has not

received its initial inspection by a state inspector.

NFPA – The National Fire Protection Association.

NIST – The National Institute of Standards and Technology. Out-of-gas call – A request for LPG

delivery to an empty tank. PEP — PERC Education Program

PERC – The Propane Education and Research Council.

Plant Oil Extraction – Process using LPG as a solvent for the isolation of oil from raw plant

matter.

Plant Oil Extraction Equipment – Any equipment used for the purpose of plant oil extraction as

defined.

Product release prevention and incident preparedness review – see definition under FSA.

Proved – The act of having verified the accuracy of meters used to measure fuel and petroleum

products using a prover.

Prover – A calibrated volumetric receiver or mechanical device traceable to NIST standards.

PSI – Pounds per square inch

– Any equipment used for the purpose of plant oil extraction as

defined.

Product release prevention and incident preparedness review – see definition under FSA.

Proved – The act of having verified the accuracy of meters used to measure fuel and petroleum

products using a prover.

Prover – A calibrated volumetric receiver or mechanical device traceable to NIST standards.

PSI – Pounds per square inch.

Registered serviceperson – Any individual who, for hire, award, commission or any other

payment of any kind, installs, services, repairs or reconditions a commercial weighing or

measuring device and who voluntarily registers with the division.

Registered service agency (RSA) – Any agency, firm, company or corporation that, for hire,

award, commission or any other payment of any kind, installs, services, repairs or

reconditions a commercial weighing or measuring device and voluntarily registers with

the division. Under agency registration, identification of individual servicepersons shall be

required.

Retail – The sale of LPG from fixed dispensing equipment or by means of bobtail delivery truck,

or such as at a fueling station, in small or individual quantities for direct consumption by

the purchaser.

State inspector – A person who is employed or authorized by the division to perform inspections

of LPG facilities.

Temporary Installation – A once only installation meeting all requirements of NFPA 58, in

service no longer than 12 months.

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Universal Cylinder - A cylinder (usually DOT) that can be connected for service in either the

vertical or the horizontal position so that the fixed maximum liquid level gauge, pressure

relief device, and filling and withdrawal appurtenances function properly in either position.

Section 1-7

Applicability

The regulations contained herein shall apply to the operation of all LPG container assembly and piping

systems including the following:

DOT) that can be connected for service in either the

vertical or the horizontal position so that the fixed maximum liquid level gauge, pressure

relief device, and filling and withdrawal appurtenances function properly in either position.

Section 1-7

Applicability

The regulations contained herein shall apply to the operation of all LPG container assembly and piping

systems including the following:

(a)

Containers, piping and associated equipment, when delivering LPG to a building for use as a fuel

gas.

(b)

Pipeline terminals, natural gasoline plants, refineries, tank farms, underground storage facilities,

aboveground storage facilities and chemical plants utilizing LPG in the manufacture of their

products.

(c)

The design, construction, installation and operation of pipeline terminals that receive LPG from

pipelines under DOT jurisdiction, whose primary purpose is the receipt of LPG for delivery to

transporters, distributors or users. Coverage shall begin downstream of the last pipeline valve or

tank manifold inlet.

Section 1-8

Condemning an LPG Container Assembly and Piping System

(a)

Conditions which a state inspector may determine to be unsafe include: bypassed safety controls;

inoperative relief valves; any gas leak from an LPG container assembly; any excessive gas leak

from the piping system; missing nameplate; or any other condition deemed by a state inspector to

be unsafe. A container assembly or piping system that meets any condition described above may

be condemned by a state inspector.

(b)

The owner or user must shut down the condemned LPG container assembly and piping system

as directed by a state inspector. If neither the owner nor user is available, a state inspector will

cause the system to be shut down.

her condition deemed by a state inspector to

be unsafe. A container assembly or piping system that meets any condition described above may

be condemned by a state inspector.

(b)

The owner or user must shut down the condemned LPG container assembly and piping system

as directed by a state inspector. If neither the owner nor user is available, a state inspector will

cause the system to be shut down.

(c)

A state inspector will affix a notice to a condemned LPG container assembly and piping system

stating that it has been condemned and may not be used until satisfactory repairs are made, as

determined by a re-inspection by a state inspector or other person authorized by the division.

ARTICLE 2

INSTALLATION

Section 2-1

General Requirements

(a)

All new LPG installations shall be constructed in accordance with the incorporated editions of the

NFPA and NIST codes.

(b)

All existing LPG installations shall be constructed in accordance with the incorporated editions of

the NFPA and NIST codes in effect at the time of construction, including any retroactive

requirements adopted by the division.

Section 2-2

Installation Permits

(a)

Plans for all installations utilizing LPG storage containers of over 2,000 gallons water capacity

shall be submitted to the division for approval before construction, including installation,

replacement or relocation of such installations, begins.

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(b)

The division shall be notified of temporary installations of the container sizes covered in (a) before

the installation is started.

(1)

Notification shall be accomplished using the process and the permit application form

listed in Section 2-2 Installation Permits (d)

(2)

Pre-approval shall be obtained from the Division for any temporary installation that is in

use for more than twelve months.

(b)

The division shall be notified of temporary installations of the container sizes covered in (a) before

the installation is started.

(1)

Notification shall be accomplished using the process and the permit application form

listed in Section 2-2 Installation Permits (d)

(2)

Pre-approval shall be obtained from the Division for any temporary installation that is in

use for more than twelve months.

(c)

Plans for any of the following shall be submitted to the division for approval before installation:

(1)

Service stations supplying LPG for motor fuel.

(2)

Installations for filling of DOT and ASME mobile containers and containers marked to

demonstrate compliance with Federal Aviation Administration regulations.

(3)

Industrial bulk storage installations and all other bulk storage installations utilizing storage

containers for LPG of over 2,000 gallons aggregate water capacity.

(4)

LPG liquid transfer operations using cylinders to fill other cylinders for use in plant oil

extraction per 6-1 (b) of these regulations.

(d)

The permit procedures are as follows:

(1)

The permit application shall be submitted on an application form approved and provided

by the division. The application form may be found at:

https://ops.colorado.gov/Petroleum/LiquefiedCompressedGases/LiquefiedPetroleumGa

s.

(2)

The application shall include a plot plan containing all elements required by the division.

(3)

The division may deny the application if the proposed installation does not conform to the

division LPG statute or regulation or to codes adopted by the division, or if the application

is incomplete or determined to be inaccurate.

(4)

Construction and installation of tank and piping shall conform to code(s) in effect at the

time of installation.

(5)

The division may revoke a permit if construction is not performed per the approved

permit, or if the construction fails to meet operating or fire safety regulations established

by the division or by the applicable NFPA Code.

lication

is incomplete or determined to be inaccurate.

(4)

Construction and installation of tank and piping shall conform to code(s) in effect at the

time of installation.

(5)

The division may revoke a permit if construction is not performed per the approved

permit, or if the construction fails to meet operating or fire safety regulations established

by the division or by the applicable NFPA Code.

(6)

An installation permit approved by the division is automatically revoked if construction

does not begin within 6 months of approval, unless a written request for an extension is

submitted to and approved by the division.

(7)

For new installations with an aggregate over 4,000 gallons, an FSA must be in effect prior

to the operation of the installation per NFPA 58, following guidance from Annex A,

A.6.29.2 and A.6.29.3 or another nationally-accepted standard approved in advance by

the division.

(8)

A local authority having jurisdiction, including fire departments, may require and enforce

more stringent requirements than these regulations.

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Section 2-3

Access Requirements

(a)

The division may inspect an LPG facility at any time during its construction. Access shall be

provided to the division or its agent for such purpose upon request.

(b)

After an LPG container has been installed, the division may inspect the container to verify

compliance with design, construction, location, installation and operation requirements.

(c)

LPG installers, facility owners, tank owners and owners of locations where an LPG container is

installed shall notify the division once the installation is completed and grant inspection access to

the division or its agent for such purpose upon request.

Section 2-4

Corrosion Prevention Requirements

(a)

Corrosion protection is required for all underground steel LPG tanks and piping installed after

September 1, 2005, and for all other underground steel LPG tanks by January 1, 2011.

ntainer is

installed shall notify the division once the installation is completed and grant inspection access to

the division or its agent for such purpose upon request.

Section 2-4

Corrosion Prevention Requirements

(a)

Corrosion protection is required for all underground steel LPG tanks and piping installed after

September 1, 2005, and for all other underground steel LPG tanks by January 1, 2011.

(b)

Corrosion protection shall meet the requirements of NFPA 58.

(c)

Cathodic protection systems shall be installed and tested in accordance with the provisions of

NFPA 58, and documentation of the results of the two most recent tests shall be retained.

(d)

Installers of cathodic protection systems shall be trained in the proper installation of cathodic

protection systems, using the PERC Cathodic Protection Guide, or PEP equivalent. Training shall

be documented per Section 4-1 of these regulations, and refresher training shall be required at

least every three years.

Section 2-5

Nameplates

(a)

When an ASME container assembly has a nameplate with a legible serial number but has

insufficient data to be in service, and there is a Manufacturer’s Data Report (U1A) with a

matching serial number and the container fits the description on the U1A, the owner/operator may

then make application to the division for a tag bearing the manufacturer’s name, ASME Code

symbol, maximum allowable working pressure, UG or AG (or both AG and UG) and water gallon

capacity. If granted, the division shall issue an identifying tag to be permanently attached to the

container by a state inspector.

serial number and the container fits the description on the U1A, the owner/operator may

then make application to the division for a tag bearing the manufacturer’s name, ASME Code

symbol, maximum allowable working pressure, UG or AG (or both AG and UG) and water gallon

capacity. If granted, the division shall issue an identifying tag to be permanently attached to the

container by a state inspector.

(b)

When an ASME container assembly has no nameplate but there is sufficient data to prove that it

once had a nameplate showing the critical data thereon, the owner/operator may then make

application to the division for a tag bearing the manufacturer’s name or trademark, ASME Code

symbol, maximum allowable working pressure, UG or AG (or both AG and UG) and water gallon

capacity. If granted, the division shall issue an identifying tag to be permanently attached to the

container by a state inspector. A copy of the container’s U1A form shall be considered important

data.

(c)

When a container assembly and piping system has a nameplate whose stamping becomes

indistinct, or the nameplate is lost or illegible but traceability to the original container assembly

item is still possible, the owner or user shall have the stamped data replaced as follows:

(1)

All re-stamping shall be done in accordance with the version of the code in effect at the

time of container construction.

(2)

A request for permission to re-stamp or replace a nameplate shall be made in advance to

the division. Proof of the original stamping and the manufacturer’s data report shall be

furnished with the request.

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(3)

Permission from the division is not required for the reattachment of nameplates that are

partially attached.

(4)

Re-stamping or replacement authorized by the division shall be witnessed by a state

inspector.

ion. Proof of the original stamping and the manufacturer’s data report shall be

furnished with the request.

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(3)

Permission from the division is not required for the reattachment of nameplates that are

partially attached.

(4)

Re-stamping or replacement authorized by the division shall be witnessed by a state

inspector.

(5)

The stamping shall be identical to the original stamping. When the Code symbol is to be

re-stamped, it shall be done by the original manufacturer and witnessed by a state

inspector.

(6)

Replacement nameplates shall be clearly marked “replacement.”

(7)

After replacing a nameplate, the owner or user shall file with the division a copy of the

stamping or nameplate as applied and shall include the signature of the state inspector

who witnessed the replacement.

(d)

If replacement of the nameplate is not possible because the container assembly cannot be

traced, a hydrostatic test or other test approved by the division must be performed if the container

is to remain in service.

a.

Such test shall be performed by an independent contractor experienced in hydrostatic

tests. The test shall be conducted according to the procedure outlined in ASTM

International Designation: E 1003 – 95 (Reapproved 2000) at 1.5 times working pressure

(250 psi x 1.5 = 375 psi) to evaluate the integrity of the container.

b.

The owner/operator may then make application, including the results of the hydrostatic

test, to the division for an exception. If granted, the division shall assign a number to the

container and issue an identifying tag with that number to be permanently attached to the

container by a state inspector.

c.

With the division’s approval, the container may continue to operate at that location

indefinitely. The container shall not be moved and reinstalled at any location, including

elsewhere at the same facility.

an exception. If granted, the division shall assign a number to the

container and issue an identifying tag with that number to be permanently attached to the

container by a state inspector.

c.

With the division’s approval, the container may continue to operate at that location

indefinitely. The container shall not be moved and reinstalled at any location, including

elsewhere at the same facility.

(e)

If a container was installed prior to September 1, 2005, and is missing the nameplate, one of the

following shall be performed:

a.

The nameplate shall be replaced per Section 2-5-1 (a) of these regulations A hydrostatic

test or other test approved by the division shall be performed and approval to operate the

container granted by the division per Section 2-5 (b) of these regulations.

b.

The container shall be permanently removed from service.

Section 2-6

Fire Safety Analysis (FSA)

(a)

For all new LPG installations in excess of 4,000 gallons in aggregate an FSA is required to be

completed by the operational date of the installation.

(b)

The FSA shall be prepared in accordance with the requirements of NFPA-58, including Annex A,

A.6.29.2 and A.6.29.3 or any other nationally-accepted standard approved by the division in

advance.

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(c)

It is not required that the FSA be prepared or approved by a professional engineer: however, the

preparation should be completed by someone who, at a minimum, is familiar with the properties

of LPG, the application of NFPA 58 and the physical layout of the installation. The preparer shall

consult with the local fire protection district to complete the FSA. Some modifications to the

installation may require the services of a registered professional engineer.

(d)

The most current FSA document shall be maintained at the LPG installation, where it shall be

available for inspection by the division upon request.

Section 2-7

Marking Underground Containers in Snow Areas

The preparer shall

consult with the local fire protection district to complete the FSA. Some modifications to the

installation may require the services of a registered professional engineer.

(d)

The most current FSA document shall be maintained at the LPG installation, where it shall be

available for inspection by the division upon request.

Section 2-7

Marking Underground Containers in Snow Areas

(a)

In areas where snow can be expected to cover the dome lids of underground containers, such

containers shall be marked so that emergency and LPG service company personnel can locate

the tank for emergency shut down purposes or to service the tank. Such marking shall be

accomplished by placing a stake or other marking that shall be installed higher than the

anticipated maximum snow level up to a height of 15 feet.

ARTICLE 3

DELIVERY AND DISPENSING

Section 3-1

LPG Delivery

(a)

Containers shall be filled only after determination from the point of transfer that the installation of

the container and visible exterior piping system comply with the provisions of NFPA 58 and these

regulations.

(b)

It is permissible to fill an ASME tank whose nameplate or other marking is damaged, provided the

following information can be determined:

(1)

If the container is registered with the National Board and the facility can produce the

Manufacturer’s Data Report (U-1A and/or U-2A) form, the manufacturer's name and

container's serial number must be legible.

(2)

If the container is not a National Board-registered container, the manufacturer's name,

the container's serial number, the ASME stamp and the pressure rating must be legible.

(c)

If the nameplate or other marking is missing, delivery to the tank is prohibited. Refer to Section 2-

5 of these regulations for instructions on re-attaching or re-placing nameplates.

(d)

Delivery to a container with corrosion that appears to be greater than 1/3 of the thickness of the

metal is prohibited.

,

the container's serial number, the ASME stamp and the pressure rating must be legible.

(c)

If the nameplate or other marking is missing, delivery to the tank is prohibited. Refer to Section 2-

5 of these regulations for instructions on re-attaching or re-placing nameplates.

(d)

Delivery to a container with corrosion that appears to be greater than 1/3 of the thickness of the

metal is prohibited.

(e)

When noncompliance with the provisions of the incorporated codes is found, the container owner

or user of record shall be notified in writing. Section 3-2 Delivery after Interruption of Service

(a)

When delivery is made to an LPG container assembly that has had an interruption of

service as defined by these regulations, a leak check shall be performed immediately

after LPG is introduced into the piping.

(b)

The leak check shall be performed according to one of the methods set forth in Annex D

(Suggested Method of Checking for Leakage) of NFPA 54 or another method approved

by the division in advance

(c)

The person performing the leak check shall document that the test was performed. The

documentation shall include, at minimum, the following information:

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(1)

Date the test was performed

(2)

Test start time

(3)

Test end time

(4)

Name of person performing the test

(5)

Name of person's employer

(6)

Address and phone number of person's employer

(7)

Type of test

(8)

Test start pressure and end pressure if a constant pressure is used

(d)

Documentation of the leak check shall be retained for a minimum of one year by the

employer of the person who performed the test.

Section 3-3

Dispensing

(a)

The requirements of Section 3-4 of these regulations shall apply to dispensers at retail facilities.

(b)

All retail and non-retail LPG dispensers must comply with the minimum standards as prescribed

by the applicable sections of the incorporated codes.

tion of the leak check shall be retained for a minimum of one year by the

employer of the person who performed the test.

Section 3-3

Dispensing

(a)

The requirements of Section 3-4 of these regulations shall apply to dispensers at retail facilities.

(b)

All retail and non-retail LPG dispensers must comply with the minimum standards as prescribed

by the applicable sections of the incorporated codes.

(c)

All LPG sales shall be offered, exposed for sale, or sold by one of the following.

(1)

Weight- by the kilogram or pound.

(2)

Liquid Volume- by the liter (defined as 1 liter @ 15°C) or the gallon (defined as 231 in³ at

60° F).

(3)

Flat Rate- (defined as the act of filling a customer’s cylinder to the maximum allowable

capacity).

Section 3-4

Retail Motor Fuel and Fuel Gas Dispenser Meter Inspection and Testing

(a)

All retail LPG dispensers shall be suitable for their intended use, properly installed and accurate,

and they shall be maintained in that condition by their owner/operator.

(b)

All retail LPG dispensers shall have an active National Type Evaluation Program (NTEP)

Certificate of Conformance (CC) prior to their installation or use for commercial purposes.

(c)

The division shall be notified when any new or remanufactured retail LPG dispenser is placed in

service at a new or existing installation. Notification shall be submitted using a placed in service

report provided by the division.

(d)

All metered sales by liquid volume shall be accompanied using a metering system as follows:

(1)

Sales using metering systems with a maximum rated capacity greater than 20 gal/min

shall be accomplished using a metering system that automatically compensates for the

effects of temperature.

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provided by the division.

(d)

All metered sales by liquid volume shall be accompanied using a metering system as follows:

(1)

Sales using metering systems with a maximum rated capacity greater than 20 gal/min

shall be accomplished using a metering system that automatically compensates for the

effects of temperature.

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(2)

Sales using metering systems with a maximum rated capacity equal to or less than 20

gal/min that were placed into service after January 1, 2026, shall be accomplished by use

of a metering system that automatically compensates for the effects of temperature.

(3)

Effective January 1, 2030, all metered sales (through all capacities of metering devices,

regardless of installation and service date) shall be accomplished by use of a metering

system that automatically compensates for temperature.

(e)

No owner/operator of any retail LPG dispenser shall use the dispenser for the measurement of

LPG unless it has been proved in a manner acceptable to the Director of the division and sealed

as correct by a state inspector or registered service agency.

(f)

If any retail LPG dispenser fails to comply with any of the provisions of this regulation, a state

inspector shall seal it in such a manner as to prohibit its use, and it shall remain sealed until it

complies with all of the provisions of this regulation.

(1)

When a retail LPG dispenser is brought back into compliance with these regulations, it

must be placed back in service by a state inspector or registered service agency.

(g)

All retail LPG dispensers shall comply with the minimum standards as prescribed by the

applicable sections of the incorporated codes, except as modified or rejected by these regulations

or by the director.

this regulation.

(1)

When a retail LPG dispenser is brought back into compliance with these regulations, it

must be placed back in service by a state inspector or registered service agency.

(g)

All retail LPG dispensers shall comply with the minimum standards as prescribed by the

applicable sections of the incorporated codes, except as modified or rejected by these regulations

or by the director.

(h)

All retail LPG dispensers shall be labeled in accordance with the minimum standards as

prescribed by the applicable sections of the incorporated codes except as modified or rejected by

these regulations or by the division.

Section 3-5

Bobtail Delivery Truck Meter Inspection and Testing

(a)

All LPG bobtail delivery truck metering systems shall be suitable for their intended use, properly

installed and accurate, and they shall be maintained in that condition by their owner/operator.

(b)

All LPG bobtail delivery truck metering systems shall have an active National Type Evaluation

Program (NTEP) Certificate of Conformance (CC) prior to their installation or use for commercial

purposes.

(c)

The division shall be notified when any new or remanufactured LPG bobtail delivery truck

metering systems is placed in service at a new or existing installation. Notification shall be

submitted using a placed in service report provided by the division.

(d)

No owner/operator of any LPG bobtail delivery truck metering system shall use the meter for the

measurement of LPG unless it has been proved in a manner acceptable to the Director of the

division and sealed as correct by a state inspector or registered service agency.

e at a new or existing installation. Notification shall be

submitted using a placed in service report provided by the division.

(d)

No owner/operator of any LPG bobtail delivery truck metering system shall use the meter for the

measurement of LPG unless it has been proved in a manner acceptable to the Director of the

division and sealed as correct by a state inspector or registered service agency.

(e)

If any LPG bobtail delivery truck metering systems fails to comply with any of the provisions of

these regulations, a state inspector shall seal it in such a manner as to prohibit its use, and it shall

remain sealed until it complies with all of the provisions of these regulations.

(1)

When an LPG bobtail delivery truck metering system is brought back into compliance

with these regulations, it must be placed back in service by a state inspector or registered

service agency.

(f)

All LPG bobtail delivery truck metering systems shall comply with the minimum standards as

prescribed by the applicable sections of the incorporated codes except as modified or rejected by

these regulations or by the division.

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(g)

All retail LPG bobtail delivery truck meters shall be labeled in accordance with the minimum

standards as prescribed by the applicable sections of the incorporated codes except as modified

or rejected by these regulations or by the division.

Section 3-6

Filling Containers by Weight

(a)

All cylinders less than 200 pounds water capacity (i.e., 100-pound cylinders), with the exception

of forklift cylinders and hot air balloon containers, shall be filled by weight.

(b)

Volumetric filling of forklift cylinders from bobtail delivery trucks shall be allowed in accordance

with NFPA 58, Section 6.7 and Table 6.7.2.1, and all personnel shall be trained in proper

handling procedures in accordance with NFPA 58, Chapter 7.

ds water capacity (i.e., 100-pound cylinders), with the exception

of forklift cylinders and hot air balloon containers, shall be filled by weight.

(b)

Volumetric filling of forklift cylinders from bobtail delivery trucks shall be allowed in accordance

with NFPA 58, Section 6.7 and Table 6.7.2.1, and all personnel shall be trained in proper

handling procedures in accordance with NFPA 58, Chapter 7.

(c)

Scales used for filling LPG containers must be inspected annually and found to be in compliance

with the specifications and tolerances published in NIST Handbook 44. This certification must be

performed either by the Colorado Department of Agriculture or by a person authorized by the

Colorado Department of Agriculture. Any necessary repairs must be completed within 30 days.

(d)

If the Colorado Department of Agriculture fails to perform the annual inspection in a timely

fashion, the scale may remain in operation, provided the scale owner has not prohibited or

hindered such inspection by the Colorado Department of Agriculture, and further provided that

any repairs required at the most recent previous inspection have been completed.

Section 3-7

Tank Delivery Truck, Semitrailer, or Truck Trailer for Bulk Storage.

(a)

No tank delivery truck, semitrailer, or truck trailer shall be used as a bulk storage plant for LPG

unless the same has been permitted, inspected and approved as a temporary installation by the

division.

(b)

Where cargo tank vehicles are filled from other cargo tank vehicles or cargo tanks, the following

requirements shall apply:

(1)

Transfer between cargo tanks or cargo tank vehicles where one is used as a bulk plant

shall be temporary installations that comply with NFPA 58, 4.3.2, 6.18.1, 6.18.2, 6.18.4

through 6.18.6, and 7.2.3.1. through 7.2.3.2. and 7.2.3.9.

(2)

Arrangement and operations of the transfer system shall be in accordance with NFPA 58

Table 6.5.3.

ARTICLE 4

TRAINING REQUIREMENTS

Section 4-1

General Training Requirements

etween cargo tanks or cargo tank vehicles where one is used as a bulk plant

shall be temporary installations that comply with NFPA 58, 4.3.2, 6.18.1, 6.18.2, 6.18.4

through 6.18.6, and 7.2.3.1. through 7.2.3.2. and 7.2.3.9.

(2)

Arrangement and operations of the transfer system shall be in accordance with NFPA 58

Table 6.5.3.

ARTICLE 4

TRAINING REQUIREMENTS

Section 4-1

General Training Requirements

(a)

Any person who transfers LPG including, but not limited to, dispenser operators, bobtail delivery

drivers and transport operators, or who services or installs exterior piping of LPG vapor

distribution systems, shall receive adequate training to perform all related duties safely and in

accordance with the provisions of NFPA 58, Sections 4.4 and 7.2.

(b)

The employer of any person referenced in (a) above, shall document that person’s training and

shall make these records available to the division or its agent upon request. The records shall

include the following information, at minimum:

(1)

Person’s name

(2)

Training date(s)

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(3)

Name of trainer

(4)

Topics covered by training

(5)

Verification by the person’s supervisor or certification described in this Article that the

person has demonstrated adequate knowledge and skill to perform assigned duties

(c)

For all training required under Sections 4-2 through 4-4 of these regulations, refresher training

shall be required at least every three years. The training shall be documented.

(d)

The employer of the person who received the training shall maintain that documentation as long

as the person remains an employee.

Section 4-2

Dispenser Operator Training

owledge and skill to perform assigned duties

(c)

For all training required under Sections 4-2 through 4-4 of these regulations, refresher training

shall be required at least every three years. The training shall be documented.

(d)

The employer of the person who received the training shall maintain that documentation as long

as the person remains an employee.

Section 4-2

Dispenser Operator Training

(a)

The minimum training requirements for dispenser operators, that shall be completed prior to

operating LPG dispensers, may be satisfied by certification by one of the following:

(1)

Certified Employee Training Program (CETP) Basic Principles and Practices, or PEP

equivalent as published by PERC.

(2)

A training program which contains, at minimum, certification by the Dispensing Propane

Safely , or PEP equivalent as published by PERC.

(3)

Equivalent training program approved by the AHJ.

Section 4-3

Delivery Personnel Training

(a)

The minimum training requirements for delivery personnel shall include:

(1)

Proper procedure for filling an ASME container

(2)

Knowledge of when a leak check is required

(3)

Proper procedure for conducting and documenting a leak check

(4)

Criteria for determining when filling a container is prohibited because of improper

installation or because of excessive corrosion, dents or gouges

(5)

Emergency procedures as outlined in the employer’s FSA

(6)

Completion of the following training programs published by PERC

(A)

CETP Basic Principles and Practices, or PEP equivalent.

(B)

CETP Bobtail Delivery Operations, or PEP equivalent.

(C)

CETP Basic Plant Operations, or PEP equivalent.

(b)

All required training for delivery personnel outlined in 4-3 (6) shall be completed within one year

of assuming current job duties.

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Section 4-4

Service and Installation Personnel Training

r PEP equivalent.

(B)

CETP Bobtail Delivery Operations, or PEP equivalent.

(C)

CETP Basic Plant Operations, or PEP equivalent.

(b)

All required training for delivery personnel outlined in 4-3 (6) shall be completed within one year

of assuming current job duties.

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Section 4-4

Service and Installation Personnel Training

(a)

The minimum training requirements for those who service or install exterior piping of LPG vapor

distribution systems may be satisfied by completing the following training programs published by

PERC.

(1)

CETP Basic Principles and Practices, or PEP equivalent.

(2)

CETP Designing & Installing Exterior Vapor Distribution Systems, or PEP equivalent.

(3)

CETP Placing Vapor Distribution Systems and Appliances into Operation, or PEP

equivalent.

(b)

All required training for those who service or install exterior piping of LPG vapor distribution

systems shall be completed within one year of assuming current job duties.

Section 4-5

Transport Operator Training

(a)

The minimum training requirements for transport operators may be satisfied by completing the

following training programs published by PERC.

(1)

CETP Basic Principles and Practices, or PEP equivalent.

(2)

PERC Transport Operator Training Program, or PEP equivalent.

(b)

All required training for transport operators shall be completed within one year of assuming

current job duties.

Section 4-6

Dispensing System Installer Training

(a)

Dispensing Systems installed after July 1, 2025, must be installed by personnel meeting minimum

training requirements.

(b)

The minimum training requirements for dispensing system installers may be satisfied by

completing the following training programs published by PERC.

(1)

CETP Basic Principles and Practices, or PEP equivalent.

(2)

CETP Designing & Installing Dispenser Transfer Systems, or PEP equivalent.

ARTICLE 5

ACCIDENT REPORTS AND INVESTIGATIONS

Section 5-1

Reportable Accidents

inimum

training requirements.

(b)

The minimum training requirements for dispensing system installers may be satisfied by

completing the following training programs published by PERC.

(1)

CETP Basic Principles and Practices, or PEP equivalent.

(2)

CETP Designing & Installing Dispenser Transfer Systems, or PEP equivalent.

ARTICLE 5

ACCIDENT REPORTS AND INVESTIGATIONS

Section 5-1

Reportable Accidents

(a)

Reports of accidents, fires, explosions, injuries, damage to property or loss of life at installations

using liquefied petroleum gas shall be reported to the division within 24 hours after their

occurrence.

(b)

Subsection (a) of this Section includes accidents resulting from the improper use of equipment,

appliances, and appurtenances to LPG systems. The division may investigate such occurrences

and shall maintain a written record of findings, which shall be available for public examination.

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Section 5-2

Reporting Requirements

(a)

The following persons are required to notify the division of an LPG accident that meets any of the

criteria of Section 5-1 of these regulations:

(1)

Owner or the owner’s representative of the LPG facility, if the accident occurred at the

facility

(2)

Employer of the delivery personnel, if the accident occurred during delivery

(3)

Employer of the delivery personnel, if the accident occurred post-delivery and the

employer received notification of it

(b)

Accidents may be reported by telephone or email using the following information:

(1)

Telephone: 303-318-8547

(2)

Email: cdle_oil_inspection@state.co.us

f the accident occurred at the

facility

(2)

Employer of the delivery personnel, if the accident occurred during delivery

(3)

Employer of the delivery personnel, if the accident occurred post-delivery and the

employer received notification of it

(b)

Accidents may be reported by telephone or email using the following information:

(1)

Telephone: 303-318-8547

(2)

Email: cdle_oil_inspection@state.co.us

(c)

The accident report shall include, at minimum, the following information.

(1)

The names of the operator and person making the report and their telephone numbers

(2)

The date, time, and location of the accident

(3)

The number of fatalities and personal injuries

(4)

All other significant facts known by the person making the report that are relevant to the

cause of the accident or extent of the damages

ARTICLE 6

INSTALLATION AND USE OF CONTAINERS AND SYSTEMS FOR PLANT OIL

EXTRACTION

Section 6-1

Transfer Operations

(a)

LPG liquid transfer operations using cylinders shall be subject to all applicable provisions of

NFPA 58 and these regulations.

(b)

LPG liquid transfer operations using cylinders shall be subject to the permitting requirements

located in Section 2-2 of these regulations.

(c)

While cylinders are connected for transferring LPG liquid into another cylinder, and they are

grouped with additional cylinders consisting of a total aggregate water capacity including the

connected cylinders, of greater than 501 gallons, the entire group of cylinders shall meet the

minimum separation distances outlined in NFPA 58 Table 6.4.1.1 along with 6.4.3 (2-4).

(d)

LPG liquid transfer operations and points of transfer shall be located in accordance with Table

6.7.2.1 of NFPA 58.

(e)

Security shall be provided to restrict unauthorized access to LPG transfer areas.

(f)

The filling location must be located 15’ from combustion engine use, i.e., vehicle parking. All

ignition sources shall be shut off.

outlined in NFPA 58 Table 6.4.1.1 along with 6.4.3 (2-4).

(d)

LPG liquid transfer operations and points of transfer shall be located in accordance with Table

6.7.2.1 of NFPA 58.

(e)

Security shall be provided to restrict unauthorized access to LPG transfer areas.

(f)

The filling location must be located 15’ from combustion engine use, i.e., vehicle parking. All

ignition sources shall be shut off.

(g)

Where heating blankets are used, they must be listed for use in explosive environments.

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(h)

Smoking, portable lighting, portable electric tools, etc. shall not be in use within 25’ of the filling

operation.

(i)

Purging of cylinders may be performed at the cylinder filling location in accordance with NFPA 58.

(1)

The cylinder must be rapidly dispersed in the atmosphere

(2)

Where environmental conditions do not allow rapid dispersal (i.e., wind conditions, site

conditions such as neighboring buildings on lot lines not allowing adequate natural

ventilation, etc.), LPG must be flared using a method in compliance with NFPA 58

(j)

LPG liquid transfer operations shall be conducted outdoors unless done in a building or room that

has been designed in accordance with NFPA 58 Chapter 10 requirements and provides

appropriate flammable gas detection equipment.

(k)

LPG liquid transfers using lighter refill-type containers using can taps or other puncture

equipment is prohibited.

(l)

Persons employed in the transfer of LPG liquid from one cylinder to another shall be trained in

accordance with the provisions of Article 4, Sections 4-1 & 4-2 of these regulations.

(m)

With the exception of a “universal cylinder”, cylinders used in transferring LPG liquid shall have a

withdrawal valve incorporating a “wet leg” that allows LPG liquid to be withdrawn while the

cylinder is in the upright position. Transfer of LPG liquid shall not be accomplished by means of

tipping or inverting a cylinder.

th the provisions of Article 4, Sections 4-1 & 4-2 of these regulations.

(m)

With the exception of a “universal cylinder”, cylinders used in transferring LPG liquid shall have a

withdrawal valve incorporating a “wet leg” that allows LPG liquid to be withdrawn while the

cylinder is in the upright position. Transfer of LPG liquid shall not be accomplished by means of

tipping or inverting a cylinder.

(n)

Fixed liquid level gauges or other “vent type” gauges, shall not be used for filling cylinders with

unodorized LPG. Filling of cylinders with LPG that is unodorized shall be accomplished only by

means of weight, using a scale that is in compliance with Section 3-6 (c) of this regulation, and

they shall be Class I Division I listed or be of the mechanical type.

(o)

Only inert gases shall be allowed to be injected into a cylinder or other container in order to

transfer LPG liquid from one container to another. Injection of compressed air, oxygen, or any

oxidizing gas into containers to transfer LPG liquid shall be prohibited.

(p)

Electrical equipment is required to be Class I Division I within 5’ and Class I Division II within 15’

of filling operations.

(q)

While cylinders are in storage awaiting use, they shall meet all of the requirements of NFPA 58

Chapter 8, Storage of Cylinders Awaiting Use, Resale, or Exchange.

(r)

All containers that contain unodorized LP-Gas shall be marked in accordance with NFPA 58,

Chapter 5.2.8.5.

Section 6-2

Extraction Equipment

(a)

Extraction equipment using LPG are required to be listed or approved by the local AHJ.

(b)

In lieu of listing, an engineering report (signed and sealed by a licensed Colorado engineer) must

be retained on site and submitted to the local AHJ where required, demonstrating how the system

meets national standards, i.e., NFPA 58, as a basis of design, including an analysis/description of

every component of the system

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u of listing, an engineering report (signed and sealed by a licensed Colorado engineer) must

be retained on site and submitted to the local AHJ where required, demonstrating how the system

meets national standards, i.e., NFPA 58, as a basis of design, including an analysis/description of

every component of the system

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(c)

Only closed-loop type LPG extraction equipment is permitted. Open blasting extractions or

equipment that releases LPG to the atmosphere during the extraction process is strictly

prohibited.

(d)

An owner’s operation manual containing specific instructions regarding proper use of equipment

and any safety provisions must be retained on site with the equipment and submitted to the local

AHJ where required.

(e)

All equipment utilizing unodorized LPG must employ flammable gas detection equipment as

approved by the AHJ.