Weather Service Modernization Criteria

DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration

15 CFR Part 946

[Docket No. 960418114-6201-03]

RIN: 0648-AF72

Weather Service Modernization Criteria

AGENCY: National Weather Service, National Oceanic and Atmospheric

Administration, Department of Commerce.

ACTION: Final rule.

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SUMMARY: In accordance with the Weather Service Modernization Act, 15

U.S.C. 313n. (the Act), the National Weather Service (NWS) is

publishing an amendment to its criteria for modernization actions

requiring certification. This amendment adds criteria unique to

automating a field office to ensure that automation actions will not

result in any degradation of service. Automating a field office occurs

after automated surface observing system (ASOS) equipment is installed

and commissioned at a field office and the News employees that were

performing surface observations at that office are removed or

reassigned.

EFFECTIVE DATE: July 31, 1996.

ADDRESSES: Requests for copies of documents stated in the preamble as

being available upon request should be sent to Julie Scanlon, NOAA/NWS,

SSMC2, Room 9332, 1325 East-West Highway, Silver Spring, Maryland

20910.

FOR FURTHER INFORMATION CONTACT:

Nicholas Scheller, 301-713-0454.

SUPPLEMENTARY INFORMATION: On May 2, 1996, the NWS published, for

comment, proposed modernization criteria unique to automating a field

office (see 61 FR 19594). In significant part, the proposed criteria

embodied the four levels of service contained in the Federal Aviation

Administration's (FAA) Weather Observation Service Standards for level

A, B, C and D airports (see 61 FR 32887). After consideration of the

public comments that were received and, after consultation with the

National Research Council's (NRC) NWS Modernization Committee and the

Modernization Transition Committee (MTC), the NWS is now establishing

the final modernization criteria for automating a field office only at

service level A, B and C airports. Establishment of final modernization

criteria for automating a field office at service level D airports is

being deferred pending further consultation with the MTC.

Consultation with the NRC's NWS Modernization Committee was

completed on June 10, 1996. During consultation with the MTC on June

27, 1996, the MTC offered the following:

The Modernization Transition Committee (MTC) has reviewed the

comments received in response to the notice in the Federal Register,

considered information provided through presentations and reports,

and thoroughly discussed the issue of level of service provided by

the modernized weather service as compared to on-site observers,

with the following conclusion:

The MTC approves the proposed automation criteria for airport

service level A, B and C airports believing that there will be no

degradation of service associated with these certifications.

However, the Committee has drawn no conclusion about degradation of

service at D service level airports that previously had an NWS

observer. The Committee will address the remaining portion of D

service level airports at their next scheduled meeting.

Peter R. Leavitt

Chair, Modernization Transition Committee.

A total of 44 public comments were received with postmarks by the

closing date for comments. Six additional comments were received with

postmarks after the closing date. The issues raised in these late

comments however, were similar to others raised in the timely comments.

All comments received were considered and are included in the numerical

totals below. The issues and concerns raised in the comments and the

Government's response follows. Most comments have to do with leaving

ASOS unattended, either generally or at specific airports. The number

of issues/concerns exceeds the total number of comments, since multiple

issues/concerns were raised in some comments. A list of persons

submitting comments is also included.

A. Comments related to leaving ASOS unattended:

1. Comment: 33 comments stated that service level D was inadequate

for their particular airport.

Response: Establishment of final criteria for service level D

airports has been deferred. The NWS will not take any action to

automate field offices at service level D airports, pending further

consultation with the MTC. Accordingly, the 27 airports proposed for

service level D have been deleted from Appendix B.

2. Comment: 10 comments expressed the following concerns about

ASOS: (a) ASOS can not be left in the unattended mode; (b) a human

presence is required at all ASOS sites; and (c) ASOS observation is

sometimes unrepresentative of actual conditions.

Response: Development and testing of automated weather observing

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equipment has been in progress for nearly 20 years. Numerous studies

and evaluations were conducted on automated observation systems

beginning in the 1970s which included systems and technology similar to

that of ASOS. Assessments of representativeness were made by comparing

automated reports, specifically, ceiling and visibility to the human

observer. As a result of the more than two decades of development and

testing, ASOS has evolved into a highly accurate, consistent, and

reliable complement to meteorological observations.

The most recent testing effort was the ASOS Aviation Demonstration

that was carried out jointly by the NWS, the FAA, and the aviation

industry, from February 15, 1995 through August 15, 1995. During this

Demonstration, NWS observers were asked to record those cases when ASOS

observations did not represent the true meteorological situation. Based

on reports supplied by NWS observers, ASOS was found to report the

correct individual weather parameters at least 98% of the time under

all conditions combined.

From the beginning, ASOS was never intended to be the sole source

of surface weather data. ASOS data will be supplemented by products

derived from other remote automated systems including satellite, radar,

and lightning networks. Efforts to develop and refine these new sensors

and additional data products are underway. However, ASOS observations

will continue to be ``augmented'' by human observers, at those sites

required by the aviation community, until these additional sensors and

data products are available, and their use is fully understood.

The strength of ASOS is not that it is ``better'' than the

observer, but that the sensor suite can be put in the area most

sensitive to the weather that the pilot needs, that multiple sensors

can be used at those sites where required, and that ASOS observations

are consistent from station to station, day to night, and continuous 24

hours a day.

3. Comment: One comment stated that the FAA, NWS, aviation

community agreement on service level D included a requirement for both

freezing rain and lightning detection sensors.

Response: The deployment of freezing rain sensors as part of the

ASOS is underway. Funding has been allocated for acquisition of over

400 sensors. The freezing rain software and hardware upgrade deployment

will be deployed at NWS sites by winter 1996/1997.

Automated thunderstorm detection capability is presently being

acquired as part of the Automated Weather Observing System (AWOS) Data

Acquisition System and will provide an automated thunderstorm report in

the METAR format from the ASOS at all level A, B, C and D sites.

Deployment of this automated thunderstorm reporting capability will

begin in June 1997. Until that time, thunderstorms will be detected and

reported manually at all sites with implemented level A, B and C

Weather Observation Service Standards.

Pending automation of freezing rain and thunderstorm detection and

reporting, neither of these parameters will be manually augmented at

level D sites. This policy was clearly established during the extensive

discussions on Weather Observation Service Standards with the aviation

industry during the last 18 months.

4. Comment: Three comments regarding Astoria, Oregon, proposed as a

D level airport, requested that local public hearings be held before

ASOS implementation.

Response: The ASOS has already been ``implemented'' at Astoria,

Oregon to the extent that it was commissioned on March 1, 1993. The

second stage of implementation will be to ``automate'' this office and

the Weather Service Modernization Act already provides for extensive

public input at this stage in several ways. Criteria by which these

actions will be certified are made available for public comment through

publication in the Federal Register. Two independent committees are

consulted during the establishment of final criteria: The National

Research Council's NWS Modernization Committee which is composed of

scientific and technical experts, and the Modernization Transition

Committee (MTC) which represents users of weather services. During

these consultations, both Committees are apprised of all public

comments received. There are two other opportunities for public input

during the certification process. Each proposed certification is

published in the Federal Register for a 60-day public comment period.

The MTC is apprised of all public comments received and has the

opportunity to recommend a course of action to the Secretary of

Commerce with regard to the final certification of ``no degradation of

service''. Finally, the MTC is a Federal advisory committee and as

such, all MTC meetings are open to the public. As part of the

consultation with the MTC on certifications and preceding deliberations

by the MTC, there is a public comment period during which the public

may address the MTC.

B. Other comments:

1. Comment: Six comments were concerned that there might be a delay

in implementing service levels A and B due to lack of funds and that

the delay would result in a degradation of service. One comment

requested that a ban on further ASOS commissionings be instituted until

funds are available to implement service levels A and B.

Response: The FAA will fund full implementation of the Weather

Observation Service Standards, including all level A and B airports.

Accordingly, NWS has eliminated any funding contingency from criterion

4a.

2. Comment: Two comments indicated that the list of airports

published in the May 2 Federal Register notice was incomplete and/or

confusing.

Response: The airports in the May 2, 1996 Federal Register notice

list were the 143 ``field offices'' which require a certification prior

to automation under the Weather Service Modernization Act. The Act

defines a field office as a Weather Service Office (WSO) or a Weather

Service Forecast Office (WSFO). Beyond these 143 locations, there are

additional airports where NWS has surface observing responsibility that

either: (1) Are not field offices--Weather Service Meteorological

Observatories (WSMOs) and Weather Service Contract Meteorological

Observatories (WSCMOs); or (2) are field offices, but NWS will continue

to perform surface observing functions. There are also a number of

airports where the FAA has surface observing responsibility. On June

25, 1996, the FAA published in the Federal Register its Weather

Observation Service Standards and a more comprehensive list of all

airports where either NWS or FAA has had surface observing

responsibility (see 61 FR 32887). Not included in this June 25 notice

are the so called ``expansion sites'', which are sites that have not

had a Federally sponsored surface observation.

3. Comment: One comment stated that automation, as proposed, will

have an adverse impact on snowfall records.

Response: Snowfall data will continue to be recorded at 46 Weather

Forecast Offices (WFO) co-located with ASOS as well as new snowfall

climatologies will commence at 73 WFOs during the 1996-1997 winter

season. In addition, snow-depth observations will continue at 22 Tower

Level 5 airports next winter season. In addition, along the Washington

and Oregon coastline, there are over 30 NWS cooperative observer (COOP)

climate stations that will continue to report daily snowfall, snow

depth, and accurate precipitation amounts for climatologists. The

primary

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purpose of this volunteer network is the taking of long-term climate

records. The NWS is now in the process of implementing a system that

will allow these observations to be disseminated to external users

once-a-day in near real-time.

Washington and Oregon contain about one dozen first-order airport

stations that historically reported snowfall information that will no

longer be available. However, data from COOP climate stations in both

states are actually considered to be the data of choice by most

climate-change researchers. The COOPs are located off airports at

locations where people live. COOPs with decades of records are found in

the temperate rain forests, Olympic mountains, and other ecologically

sensitive areas.

The volunteer COOP network will continue to provide high-quality

climate data for NWS and external users. The NWS is even considering

opening new COOP stations in areas where observations are scarce with

snowfall information unavailable and whereby no current COOP is located

in the surrounding vicinity.

In addition, the Supplementary Data Program (see 60 FR 64020),

became operational on October 1, 1995 at 119 WFOs, where staffing and

equipment permits. This includes the providing of event driven

supplementary data observations (i.e., ice pellets, snow increase

rapidly, size of hailstones) and routinely scheduled supplementary

climatological data (i.e., depth of new snow, duration of sunshine,

water equivalent of snow on ground).

4. Comment: One comment expressed concerns with ASOS's inability to

detect clouds above 12,000 feet, use of ``fair'' for sky conditions

when ASOS reports ``CLR below 12,000 ft.'', and ASOS not reporting

freezing rain.

Response: A few years ago, NOAA started generating a Satellite

Cloud Product (SCP) to complement ASOS above 12,000 ft. SCPs, generated

for a 50x50-km grid centered around ASOS sites, are available in

regional collectives through the Family of Services with the following

bulletin headings:

GOES-8

TCUS40 KWBC--Eastern US

TCUS41 KWBC--Central US

TCUS42 KWBC--Southern US

GOES-9

TCUS51 KWBC--Central US

TCUS52 KWBC--Southern US

TCUS53 KWBC--Western US

Among other things, the SCPs indicate the cloud category (CLR, SCT,

BKN, OVC) and the height of the cloud in 100's of feet.

NWS is sensitized to the ``FAIR'' issue and is working toward a

more representative depiction of sky conditions on the Hourly (State)

Weather Roundup (SWR). NWS sites which ``run'' the SWR can merge the

SCP data with the ASOS data, thereby producing a better combined sky

condition. Many NWS sites are already doing this and more will be doing

so in the future once SCPs are generated for all ASOS sites.

The issue of the ``FAIR'' on The Weather Channel (TWC) is a little

different. TWC gets its observational data from Weather Services

International (WSI) Corporation. WSI does not presently process NWS

SWRs. ``FAIR'' is a WSI term.

NWS has had discussions with both TWC and WSI about this issue.

Both are working on schemes to assimilate the SCP data, thereby making

a more representative sky condition. In lieu of utilizing the WSI

observational data stream, TWC is independently investigating the

feasibility of ``ingesting'' and displaying the NWS SWRs on their

``Weather on the 8's'' segment.

The concern about reporting of freezing rain is addressed in the

response to comment A3.

5. Comment: One comment stated that ASOS should be replaced by

METAR.

Response: The writer of this comment has misunderstood the

difference between METAR and ASOS.

The Aviation Routine Weather Report (METAR) does not replace ASOS.

ASOS is an automated and integrated group of sensors to collect surface

weather parameters.

METAR on the other hand is the reporting format in which the

weather elements are provided from the ASOS. Historically, there have

been two weather reporting formats. North American countries (United

States, Canada and Mexico) used a format referred to as a Surface

Aviation Observation (SAOP, and the rest of the world, with minor

differences, used a format called Aviation Routine Weather Report

(METAR) to report weather. For years discussions took place on

standardizing the reporting format. Agreement was reached in 1989 and

the resultant code, still referred to as METAR, represents a blend of

the existing SAO and METAR reports. Because countries were permitted to

file exceptions to the code format, not all METAR reports are

identical, and thus there will be slight differences among the codes.

Canada and Mexico have already implemented the METAR code format, and

the United States, in accordance with international agreements,

implemented the METAR code format on July 1, 1996.

6. Comment: One comment stated that the ASOS at Wheeling-Ohio

County Airport remains uncommissioned.

Response: The ASOS at Wheeling--Ohio County airport is an FAA-

sponsored ASOS and requires FAA long-line communications for

commissioning. Currently, plans are to install the communications lines

in the fall 1996 followed by commissioning in January/February 1997.

7. Comment: One comment stated that there is no radio transmission

from the ASOS at Marathon Airport (MTH), Florida.

Reponse: A ground-to-air radio was installed at Marathon in March

1994. Shortly after installation, radio frequency interference was

reported. That interference problem was corrected on May 14, 1996 and

the radio is now broadcasting.

8. Comment: Three comments raised concerns about specific public

forecast product, the quality of the forecasts, timeliness of NOAA

Weather Radio updates, elimination of the agricultural forecast program

and closure of the Astoria, Oregon Weather Service Office (WSO).

Response: These issues are not related to ASOS and/or automation

and are more appropriately addressed during the certification process

for actions involving the particular WSOs.

List of Persons Submitting Comments

Dean Jacobs, Executive Director, Valentine Chamber of Commerce,

Valentine, Nebraska

Dean Jacobs, Executive Director, Visitor Promotion Committee, Cherry

County, Valentine, Nebraska

concerned citizen, Freeland, Michigan

Jay Trobec, KELO-TV, Sioux Falls, South Dakota

Mike Boggs, Airport Manager, Eugene Airport, Eugene, Oregon

Kelly Kilmer, Quality Control Focal Point, Valentine ASOS Station,

Valentine, Nebraska

Troy Kimmel, Chief Meteorologist, KTBC-TV, Austin, Texas

Robert Kilmer, Airport Manager, Valentine, Nebraska (2 comments)

Evelyn Kilmer, Valentine, Nebraska (2 comments)

Gerald Ellison, Valentine Nebraska

Allan L. Jameson, Commercial Pilot, Valentine, Nebraska

Robert A. Peterson, Administrator, Valentine, Nebraska

Tim Bader, Valentine, Nebraska

Paul Joseph, Chief Meteorologist, WTMJ-TV, Milwaukee, Wisconsin

Thomas S. Tominack, Airport Manager, Wheeling-Ohio County Airport,

Wheeling West Virginia

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A. Earl Cheal, Vice President and General Manager, The Flight

Department, Marathon Airport, Marathon, Florida

Timothy M. Kellett, Paso Robles, California (2 comments)

Leo D. Hollis, Director--Flight Control, America West Airlines,

Phoenix, Arizona

Joe Bakkensen, Chair, Board of Commissioners, Clatsop County,

Astoria, Oregon

Thomas G. Macklin, Paso Robles, California

Sean Boyd, KSEE-TV, Fresno, California

Ron Larsen, Director of Operations, Port of Astoria, Astoria, Oregon

(2 comments)

Melvin Christenson, Cherry County Sheriff, Valentine, Nebraska

John P. Raichl, Sheriff and Director of Emergency Services, Clatsop

County, Astoria, Oregon

Richard Carlson, Sequim, Washington

Steve Fick, President, Salmon for All, Astoria, Oregon

William N. Sears, Director, Air Traffic Capacity & Meteorology, Air

Transport Association, Washington, DC

Robert J. Massey, Chairman, Aviation Weather Committee, Air Line

Pilots Association, Herndon, Virginia

Warren L. Qualley, Manager--Weather Services, American Airlines, DFW

Airport, Texas

Tom Fahey, Manager, Northwest Airlines Meteorology, St. Paul,

Minnesota

Paul Gross, WDIV-TV, Detroit, Michigan

Barbara Balensifier, Mayor of Warrenton, Warrenton, Oregon

Brad Barclay, Contract Weather Observer, Paso Robles Airport,

Atascadero, California

Drs. Richard & Janet Laughlin, Astoria, Oregon

Robert D. DeLong, City Manager, Astoria, Oregon

Paul O'Connell, RN, Flight Supervisor, Good Samaritan Hospital,

Kearney, Nebraska

Robert Stratton, Templeton, California

Paul Levesque, Executive Assistant, Tillamook County Commissioners,

Tillamook, Oregon

Monte M. Eliason, Airport Manager, Glacier Park International

Airport, Kalispell, Montana

Pam Birmingham, Pete Anderson Realty, Inc., Seaside, Oregon

Tim Josi, State Representative, District 2, Salem, Oregon

Dennis Ernest, Program Director, KNEB AM/FM, Scottsbluff, Nebraska

William R. McDonald, Chairman, Columbia County Board of

Commissioners, St. Helens, Oregon

Oliver Vernor, Mayor, City of Seaside, Seaside, Oregon

Pat Hamilton, Chairperson, Pacific County Commissioners, South Bend,

Washington

William F. Shea, Commissioner, Port of Astoria, Astoria, Oregon

A. Classification Under Executive Order 12866

These regulations establish procedures and criteria for certifying

that certain actions to modernize NWS will not result in any

degradation of weather services to the affected service area. They will

not result in any direct or indirect economic impacts, and have been

determined not to be significant for purposes of E.O. 12866.

B. Regulatory Flexibility Act Analysis

These regulations set forth the criteria for certifying that

certain modernization actions will not result in a degradation of

service to the affected area. These criteria will be appended to the

Weather Service Modernization regulations. The Assistant General

Counsel for Legislation and Regulation of the Department of Commerce

has certified to the Chief Counsel for Advocacy of the Small Business

Administration when these criteria were proposed, that if adopted as

proposed, they will not have a significant economic impact on a

substantial number of small entities. These criteria are intended for

internal agency use, and the impact on small business entities will be

negligible. The proposed criteria do not directly affect ``small

government jurisdictions'' as defined by Pub. L. 96-354, the Regulatory

flexibility Act. Accordingly, no initial regulatory flexibility

analysis was prepared.

C. Paperwork Reduction Act of 1980

These regulations will impose no information collection

requirements of the type covered by Pub. L. 96-511, the Paperwork

Reduction Act of 1980.

D. Executive Order 12612

This rule does not contain policies with sufficient Federalism

implications to warrant preparation of a Federalism assessment under

Executive Order 12612.

E. National Environmental Policy Act

NOAA has concluded that issuance of this rule does not constitute a

major Federal action significantly affecting the quality of the human

environment. Therefore, an environmental impact statement is not

required. A programmatic Environmental Impact Statement (EIS) regarding

NEXRAD was prepared in November 1984, and an Environmental Assessment

to update the portion of the EIS dealing with the bioeffects of NEXRAD

non-ionizing radiation was issued in 1993.

List of Subjects in 15 CFR Part 946

Administrative practice and procedure, Certification,

Commissioning. Decommissioning, national Weather Service, Weather

service modernization.

Dated: July 26, 1996.

Elbert W. Friday, Jr.,

Assistant Administrator for Weather Services.

For the reasons set out in the preamble, 15 CFR part 946 is amended

as follows:

1. The authority citation for part 946 continues to read as

follows:

Authority: Title VII of Pub. L. 102-567, 106 Stat 4303 (15

U.S.C. 313n.)

2. Appendix A to part 946 is amended by adding a new Subsection (D)

under Section II. CRITERIA FOR MODERNIZATION ACTIONS REQUIRING

CERTIFICATION, to read as follows:

(D) Modernization Criteria Unique to Automation Certifications

1. Compliance with flight aviation rules (applies on airports

only): Consultation with the Federal Aviation Administration (FAA)

has verified that the weather services provided after the

commissioning of the relevant ASOS unit(s) will be in full

compliance with applicable Federal Aviation Regulations promulgated

by the FAA.

2. ASOS Commissioning: The relevant ASOS unit(s) have been

successfully commissioned in accordance with the criteria set forth

in section I.A.1 of Appendix A to the Weather Service Modernization

Regulations, 15 CFR part 946.

3. User Confirmation of Services: Any valid user complaints

related to actual system performance received since commissioning of

the ASOS have been satisfactorily resolved and the issues addressed

in the MIC's recommendation for certification.

4. Aviation Observation Requirement: At sites subject to

automation certification, all surface observations and reports

required for aviation services can be generated by an ASOS augmented

as necessary by non-NWS personnel.

a. The ASOS observation will be augmented/backed-up to the level

specified in Appendix B as described in the Summary Chart of the

FAA's Weather Observation Service Standards.

b. The transition checklist has been signed by the appropriate

Region Systems Operations Division Chief.

5. General Surface Observation Requirement: The total

observations available are adequate to support the required

inventory of services to users in the affected area. All necessary

hydrometeorological data and information are available through ASOS

as augmented in accordance with this section, through those elements

reported as supplementary data by the relevant Weather Forecast

Office(s), or through other complementary sources. The adequacy of

the total surface observation is addressed in the MIC's

recommendation for certification.

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Appendix B is added to Part 946 to read as follows:

Appendix B to Part 946--Airport Tables

``A'' Level Service Airports

*Akron, OH..........................................................CAK

*Albany, NY.........................................................ALB

*Atlanta, GA........................................................ATL

*Baltimore, MD......................................................BWI

*Boston, MA.........................................................BOS

Charlotte, NC.......................................................CLT

*Chicago-O'Hare (AV), IL............................................ORD

Cincinnati, OH......................................................CVG

Columbus, OH........................................................CMH

*Dayton, OH.........................................................DAY

*Des Moines, IA.....................................................DSM

*Detroit, MI........................................................DTW

*Fairbanks, AK......................................................FAI

*Fresno, CA.........................................................FAT

*Greensboro, NC.....................................................GSO

*Hartford, CT.......................................................BDL

*Indianapolis, IN...................................................IND

*Kansas City, MO....................................................MCI

*Lansing, MI........................................................LAN

Las Vegas, NV.......................................................LAS

Los Angeles (AV), CA................................................LAX

*Louisville, KY.....................................................SDF

*Milwaukee, WI......................................................MKE

*Minneapolis, MN....................................................MSP

*Newark, NJ.........................................................EWR

*Oklahoma City, OK..................................................OKC

Phoenix, AZ.........................................................PHX

*Portland, OR.......................................................PDX

*Providence, RI.....................................................PVD

*Raleigh, NC........................................................RDU

*Richmond, NC.......................................................RIC

*Rochester, NY......................................................ROC

*Rockford, IL.......................................................RFD

*San Antonio, TX....................................................SAT

San Diego, CA.......................................................SAN

*San Francisco, CA..................................................SFO

*Spokane, WA........................................................GEG

*Syracuse, NY.......................................................SYR

Tallahassee, FL.....................................................TLH

Tulsa, OK...........................................................TUL

``B'' Level Service Airports

*Baton Rouge, LA....................................................BTR

*Billings, MT.......................................................BIL

*Charleston, WV.....................................................CRW

*Chattanooga, TN....................................................CHA

Colorado Springs, CO................................................COS

Daytona Beach, FL...................................................DAB

El Paso, TX.........................................................ELP

Flint, MI...........................................................FNT

Fort Wayne, IN......................................................FWA

Honolulu, HI........................................................HNL

*Huntsville, AL.....................................................HSV

*Knoxville, TN......................................................TYS

*Lincoln, NE........................................................LNK

Lubbock, TX.........................................................LBB

*Madison, WI........................................................MSN

*Moline, IL.........................................................MLI

*Montgomery, AL.....................................................MGM

*Muskegon, MI.......................................................MKG

*Norfolk, VA........................................................ORF

Peoria, IL..........................................................PIA

*Savannah, GA.......................................................SAV

*South Bend, IN.....................................................SBN

Tucson, AZ..........................................................TUS

*West Palm Beach, FL................................................PBI

*Youngstown, OH.....................................................YNG

``C'' Level Service Airports

Abilene, TX.........................................................ABI

Allentown, PA.......................................................ABE

Asheville, NC.......................................................AVL

Athens, GA..........................................................AHN

Atlantic City, NJ...................................................ACY

Augusta, GA.........................................................AGS

Austin, TX..........................................................AUS

Bakersfield, CA.....................................................BFL

Bridgeport, CT......................................................BDR

Bristol, TN.........................................................TRI

Casper, WY..........................................................CPR

Columbia, MO........................................................COU

Columbus, GA........................................................CSG

Dubuque, IA.........................................................DBQ

Erie, PA............................................................ERI

Eugene, OR..........................................................EUG

Evansville, IN......................................................EVV

Fargo, ND...........................................................FAR

Fort Smith, AR......................................................FSM

Grand Island, NE....................................................GRI

Helena, MT..........................................................HLN

Huntington, WV......................................................HTS

Kahului, HI.........................................................OGG

Key West, FL........................................................EYW

Lewiston, ID........................................................LWS

Lexington, KY.......................................................LEX

Lynchburg, VA.......................................................LYH

Macon, GA...........................................................MCN

Mansfield, OH.......................................................MFD

Meridian, MS........................................................MEI

Olympia, WA.........................................................OLM

Port Arthur, TX.....................................................BPT

Portland, ME........................................................PWM

Rapid City, SD......................................................RAP

Redding, CA.........................................................RDD

Reno, NV............................................................RNO

Roanoke, VA.........................................................ROA

Rochester, MN.......................................................RST

Salem, OR...........................................................SLE

Santa Maria, CA.....................................................SMX

Sioux City, IA......................................................SUX

Springfield, IL.....................................................SPI

Stockton, CA........................................................SCK

Toledo, OH..........................................................TOL

Waco, TX............................................................ACT

Waterloo, IA........................................................ALO

Wilkes-Barre, PA....................................................AVP

Williamsport, PA....................................................IPT

Wilmington, DE......................................................ILG

Worcester, MA.......................................................ORH

Yakima, WA..........................................................YKM

*Long-line RVR designated site.

[FR Doc. 96-19412 Filed 7-30-96; 8:45 am]

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