[Code of Federal Regulations]

[Title 15, Volume 3]

[Revised as of January 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 15CFR946.10]



[Page 280-287]

 

                  TITLE 15--COMMERCE AND FOREIGN TRADE

 

CHAPTER IX--NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT 

                               OF COMMERCE

 

PART 946_MODERNIZATION OF THE NATIONAL WEATHER SERVICE--Table of Contents

 

Sec. 946.10  Liaison officer.



    Prior to restructuring a field office, the Responsible Meteorologist 

shall designate at least one person in the affected service area to act 

as a liaison officer for at least a 2-year period whose duties shall be:

    (a) Provide timely information regarding the activities of the NWS 

which may affect service to the community including specifically 

modernization and restructuring activities; and

    (b) Work with area users, including persons associated with general 

aviation, civil defense, emergency preparedness, and the news media, 

with respect to the provision of timely weather warnings and forecasts.



 Appendix A to Part 946--National Weather Service Modernization Criteria



    I. Modernization Criteria for Actions Not Requiring Certification



          (A) Commissioning of New Weather Observation Systems



            (1) Automated Surface Observation Systems (ASOS)



    Purpose: Successful commissioning for full operational use requires 

a demonstration, by tests and other means, that the ASOS equipment, as 

installed in the field office, meets its technical requirements; that 

the prescribed operating, maintenance, and logistic support elements are 

in place; that operations have been properly staffed with trained 

personnel and that the equipment can be operated with all other 

installed mating elements of the modernized NWS system.



    Note: It may be necessary to incorporate work-arounds to complete 

some of the items listed below in a timely and cost-effective manner. A 

work-around provides for an alternative method of meeting a 

commissioning criteria through the application of a pre-approved 

operational procedure implemented on a temporary basis, for example, by 

human augmentation of the observation for the occurrence of freezing 

rain, until such time as a freezing rain sensor has been accepted for 

operational use with ASOS. The ASOS Plan referenced below includes a 

process for recommending, approving, and documenting work arounds and 

requires that they be tracked as open items until they can be eliminated 

by implementation of the originally intended capability.



    References: The criteria and evaluation elements for commissioning 

are set forth and further detailed in the NWS-Sponsored Automated 

Surface Observing System (ASOS) Site Component Commissioning Plan (the 

ASOS Plan), more specifically in Addendum I, Appendix D of the ASOS Site 

Component Commissioning Evaluation Package (the ASOS Package).

    Criteria: a. ASOS Acceptance Test: The site component acceptance 

test, which includes objective tests to demonstrate that the ASOS, as 

installed at the given site, meets its technical specifications, has 

been successfully completed in accordance with item 1a, p. D-2 of 

Appendix D of the ASOS Package.

    b. Sensor Siting: Sensor sitings provide representative observations 

in accordance with Appendix C of the ASOS Package, Guidance for 

Evaluating Representativeness of ASOS Observations and item 1b, p. D-2 

of Appendix D of the ASOS Package.



[[Page 281]]



    c. Initialization Parameters: Initialization parameters are in 

agreement with source information provided by the ASOS Program Office, 

in accordance with item 1c, pp. D-2 & D-3 of Appendix D of the ASOS 

Package.

    d. Sensor Performance Verification: Sensor performance has been 

verified in accordance with the requirements stated in the ASOS Site 

Technical Manual and item 1d, p. D-3 of the ASOS Package.

    e. Field Modification Kits/Firmware Installed: All critical field 

modification kits and firmware for the site as required by attachments 

3a & b (pp. D-45 & D-46) or memorandum issued to the regions, have been 

installed on the ASOS in accordance with item 1e, p. D-4 of Appendix of 

the ASOS Package.

    f. Operations and Maintenance Documentation: A full set of 

operations and maintenance documentation is available in accordance with 

items 2a-h, pp. D-5 & D-6 of Appendix D of the ASOS Package.

    g. Notification of and Technical Coordination with Users: All 

affected users have been notified of the initial date for ASOS 

operations and have received a technical coordination package in 

accordance with item 2i, pp. D-6 & D-7 of Appendix D of the ASOS 

Package.

    h. Availability of Trained Operations Personnel: Adequate operations 

staff are available, training materials are available, and required 

training has been completed, per section 3.2.3.1 of the ASOS Plan, in 

accordance with items 3a-c, p. D-8 of Appendix D of the ASOS package.

    i. Maintenance Capability: Proper maintenance personnel and support 

systems and arrangements are available in accordance with items 4a-e, 

pp. D-9 & D-10 of Appendix D of the ASOS Package.

    j. Performance of Site Interfaces: The equipment can be operated in 

all of its required modes and in conjunction with all of its interfacing 

equipment per the detailed checklists of items 5a-b, pp. D-11 & D-19 of 

Appendix D of the ASOS Package.

    k. Support of Associated NWS Forecasting and Warning Services: The 

equipment provides proper support of NWS forecasting and warning 

services and archiving, including operation of all specified automatic 

and manually augmented modes per the checklist, items 6a-e, pp. D-20 to 

D-29, of Appendix D of the ASOS Package.

    l. Service Backup Capabilities: Personnel, equipment, and supporting 

services are available and capable of providing required backup readings 

and services in support of operations when primary equipment is 

inoperable in accordance with items 7a-g, pp. D-30 to D-32, of Appendix 

D of the ASOS Package.

    m. Augmentation Capabilities: Personnel are available and trained to 

provide augmentation of ASOS observations in accordance with 

augmentation procedures, items 8a-c, p. D-33 of Appendix D of the ASOS 

Package.

    n. Representativeness of Observations: Observations are 

representative of the hydrometeorological conditions of the observing 

location as determined by a period of observation of at least 60 days 

prior to commissioning in accordance with Appendix C and item 6e, pp. D-

27 to D-29 of Appendix D of the ASOS Package.



                        (2) WSR-88D Radar System



    Purpose: Successful commissioning for full operational use requires 

a demonstration, by tests and other means, that the WSR-88D radar 

system, as installed in the field office, meets its technical 

requirements; that the prescribed operating, maintenance, and logistic 

support elements are in place; that operations have been properly 

staffed with trained personnel; and that the equipment can be operated 

with all other installed mating elements of the modernized NWS system.



    Note: It may be necessary to incorporate work-arounds to complete 

some of the items listed below in a timely and cost-effective manner. A 

work-around provides for an alternative method of meeting a 

commissioning criteria through the application for a pre-approved 

operational procedure implemented on a temporary basis. The WSR-88D Plan 

referenced below includes a process for recommending, approving, and 

documenting work arounds and requires that they be tracked as open items 

until they can be eliminated by implementation of the originally 

intended capability.



    Reference: The criteria and evaluation elements for commissioning 

are set forth and further detailed in the NWS-Sponsored WSR-88D Site 

Component Commissioning Plan (the 88D Plan) and an Attachment to that 

Plan, called the WSR-88D Site Component Commissioning Evaluation Package 

(the WSR-88D Package).

    Criteria: a. WSR-88D Radar Acceptance Test: The site component 

acceptance test, which includes objective tests to demonstrate that the 

WSR-88D radar, as installed at the given site, meets its technical 

specifications, has been successfully completed in accordance with items 

1a-f, p. A-2 of Appendix A of the WSR-88D Package.

    b. Availability of Trained Operations and Maintenance Personnel: 

Adequate operations and maintenance staffs are available, training 

materials are available, and required training has been completed in 

accordance with items 2a-h, pp. A-3 & A-4 of Appendix A of the WSR-88D 

Package.

    c. Satisfactory Operation of System Interfaces: The system can be 

operated in all of its required modes and in conjunction with all of its 

interfacing equipment in accordance with items 3a-e, p. A-5 of Appendix 

A of the WSR-88D Package.



[[Page 282]]



    d. Satisfactory Support of Associated NWS Forecasting and Warning 

Services: The system provides proper support of NWS forecasting and 

warning services, including at least 96 percent availability of the 

radar coded message for a period of 30 consecutive days prior to 

commissioning in accordance with items 4a-kk, pp. A-6 to A-17 of 

Appendix A of the WSR-88D Package.

    e. Service Backup Capabilities: Service backup capabilities function 

properly when the primary system is inoperable in accordance with items 

5a-e, p. A-18 of Appendix A of the WSR-88D Package.

    f. Documentation for Operations and Maintenance: A full set of 

operations and maintenance documentation is available in accordance with 

items 6a-n, pp. A-19 to A-25 of Appendix A of the WSR-88D Package.

    g. Spare Parts and Test Equipment: A full complement of spare parts 

and test equipment is available on site in accordance with items 7a-e, 

p. A-26, of Appendix A of the WSR-88D Package.



                (B) Decommissioning an Outdated NWS Radar



    Purpose: Successful decomissioning of an old radar requires 

assurance that the existing radar is no longer needed to support 

delivery of services and products and local office operations.

    References: The criteria and evaluation elements for decommissioning 

are set forth and further detailed in the NWS-Sponsored Network and 

Local Warning Radars (Including Adjunct Equipment) Site Component 

Decommissioning Plan (the Plan), more specifically in Appendix B to that 

Plan, called the Site Component Decommissioning Evaluating Package, and 

in Section 3.3 of the Internal and External Communication and 

Coordination Plan for the Modernization and Associated Restructuring of 

the Weather Service.

    Criteria: a. Replacing WSR-88D(s) Commissioning/User Service 

Confirmation: The replacing WSR-88D(s) have been commissioned and user 

confirmation of services has been successfully completed, i.e., all 

valid user complaints related to actual system performance have been 

satisfactorily resolved, in accordance with items 1a-c, p. B-10 of 

Appendix B of the Plan.

    b. Operation Not Dependent on Existing Radar: The outdated radar is 

not required for service coverage, in accordance with items 2a-c, p. B-

11 of Appendix B of the Plan.

    c. Notification of Users: Adequate notification of users has been 

provided, in accordance with items 3a-f, pp. B-12 & B-13 of Appendix B 

of the Plan.

    d. Disposal of Existing Radar: Preparations for disposal of the old 

existing radar have been completed, in accordance with items 4a-d, pp. 

B-14 & B-15 of Appendix B of the Plan.



    (C) Evaluating Staffing Needs for Field Offices in Affected Areas



    References: The criteria and evaluation elements are set forth and 

further detailed in the ASOS and WSR-88D Evaluation Packages and in the 

Human Resources and Position Management Plan for the National Weather 

Service Modernization and Associated Restructuring (the Human Resources 

Plan).

    Criteria: 1. Availability of Trained Operations and Maintenance 

Personnel at a NEXRAD Weather Service Forecast Office or NEXRAD Weather 

Service Office: Adequate operations and maintenance staffs are available 

to commission a WSR-88D, specifically criterion b. set forth in section 

I.A.2. of this Appendix which includes meeting the Stage 1 staffing 

levels set forth in chapter 3 of the Human Resources Plan.

    2. Availability of Trained Operations and Maintenance Personnel at 

any field office receiving an ASOS: Adequate operations and maintenance 

staff are available to meet the requirements for commissioning an ASOS, 

specifically criteria h and i set forth in section I.A.1 of this 

Appendix.



     II. Criteria for Modernization Actions Requiring Certification



(A) Modernization Criteria Common to all Types of Certifications (Except 

                                as Noted)



    1. Notification: Advanced notification and the expected date of the 

proposed certification have been provided in the National Implementation 

Plan.

    2. Local Weather Characteristics and Weather Related Concerns: A 

description of local weather characteristics and weather related 

concerns which affect the weather services provided to the affected 

service area is provided.

    3. Comparison of Services: A comparison of services before and after 

the proposed action demonstrates that all services currently provided to 

the affected service area will continue to be provided with no 

degradation of services.

    4. Recent or Excepted Modernization of NWS Operations in the 

Affected Service Area: A description of recent or expected modernization 

of NWS operations in the affected service area is provided.

    5. NEXRAD Network Coverage: NEXRAD network coverage or gaps in 

coverage at 10,000 feet over the affected service area are identified.

    6. Air Safety Appraisal (applies only to relocation and closure of 

field offices at an airport): Verification that there will be no 

degradation of service that affects aircraft safety has been made by 

conducting an air safety appraisal in consultation with the Federal 

Aviation Administration.



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    7. Evaluation of Services to In-state Users (applies only to 

relocation and closure of the only field office in a state): 

Verification that there will be no degradation of weather services 

provided to the state has been made by evaluating the effect on weather 

services provided to in-State users.

    8. Liaison Officer: Arrangements have been made to retain a Liaison 

Officer in the affected service area for at least two years to provide 

timely information regarding the activities of the NWS which may affect 

service to the community, including modernization and restructuring; and 

to work with area weather service users, including persons associated 

with general aviation, civil defense, emergency preparedness, and the 

news media, with respect to the provision of timely weather warnings and 

forecasts.

    9. Meteorologist-In-Charge's (MIC) Recommendation to Certify: The 

MIC of the future WFO that will have responsibility for the affected 

service area has recommended certification in accordance with 15 CFR 

946.7(a).

    10. Regional Director's Certification: The cognizant Regional 

Director has approved the MIC's recommended certification of no 

degradation of service to the affected service area in accordance with 

15 CFR 946.8.



    (B) Modernization Criteria Unique to Consolidation Certifications



    1. WSR-88D Commissioning: All necessary WSR-88D radars have been 

successfully commissioned in accordance with the criteria set forth in 

section I.A.2. of this Appendix.

    2. User Confirmation of Services: All valid user complaints related 

to actual system performance have been satisfactorily resolved in 

accordance with section 3.3 of the Internal and External Communication 

and Coordination Plan for the Modernization and Associated Restructuring 

of the National Weather Service.

    3. Decommissioning of Existing Radar: The existing radar, if any, 

has been successfully decommissioned in accordance with the criteria set 

forth in section I.B. of this Appendix.



     (C) Modernization Criteria Unique to Relocation Certifications



    1. Approval of Proposed Relocation Checklist: The cognizant regional 

director has approved a proposed relocation checklist setting forth the 

necessary elements in the relocation process to assure that all affected 

users will be given advanced notification of the relocation, that 

delivery of NWS services and products will not be interrupted during the 

office relocation, and that the office to be relocated will resume full 

operation at the new facility expeditiously so as to minimize the 

service backup period.

    Specific Elements: a. Notification of and Technical Coordination 

with Users: The proposed relocation checklist provides for the 

notification of and technical coordination with all affected users.

    b. Identification and Preparation of Backup Sites: The proposed 

relocation checklist identifies the necessary backup sites and the steps 

necessary to prepare to use backup sites to ensure service coverage 

during the move and checkout period.

    c. Start of Service Backup: The proposed relocation checklist 

provides for invocation of service backup by designated sites prior to 

office relocation.

    d. Systems, Furniture and Communications: The proposed relocation 

checklist identifies the steps necessary to move all systems and 

furniture to the new facility and to install communications at the new 

facility.

    e. Installation and Checkout: The proposed relocation checklist 

identifies all steps to install and checkout systems and furniture and 

to connect to communications at the new facility.

    f. Validation of Systems Operability and Service Delivery: The 

proposed relocation checklist provides for validation of system 

operability and service delivery from the new facility.

    2. Publishing of the Proposed Relocation Checklist and Evidence form 

Completed Moves: The proposed relocation checklist and the evidence from 

other similar office moves that have been completed, have been published 

in the Federal Register for public comment. The evidence from the other 

office moves indicates that they have been successfully completed.

    3. Resolution of Public Comments Received: All responsive public 

comments received from publication, in the Federal Register, of the 

checklists and of the evidence from completed moves are satisfactorily 

answered.



     (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



[[Page 284]]



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 (applies to service level A, B 

and C airports only).

    c. Thunderstorm occurrence is reported in the ASOS observation 

through the use of a lightning sensor (applies to service level D 

airports only, excluding Homer, Alaska).

    d. Freezing rain occurrence is reported in the ASOS observation 

through the use of a freezing rain sensor. Among service level D 

airports, this criterion is not applicable to Ely, Nevada and Lander, 

Wyoming.

    5. Pilot Education and Outreach Completed: The Air Safety Foundation 

has conducted a pilot education and outreach effort to educate pilots on 

the use of automated observations and measure their understanding and 

acceptance of automated observing systems, and the MTC has had an 

opportunity to review the results of this effort (applies to service 

level D airports only).

    6. 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 MTC's recommendation for certification.



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[GRAPHIC] [TIFF OMITTED] TR21JY97.000



       (E) Modernization Criteria Unique to Closure Certifications



    1. Consolidation Certification: If the field office proposed for 

closure has or will be consolidated, as defined in Sec. 946.2 of the 

basic modernization regulations, this action has been completed as 

evidenced by the approved



[[Page 286]]



certification or can be completed as evidenced by all of the 

documentation that all of the requirements of sections II.A. and II.B of 

this Annex have been completed.

    2. Automation Certification: If the field office proposed for 

closure has or will be automated, as defined in Sec. 946.2 of the basic 

modernization regulations, this action has been completed as evidenced 

by the approved certification or can be completed as evidenced by 

documentation that all of the requirements of sections II.A. and II.C. 

of this Annex has been completed.

    3. Remaining Services and/or Observations: All remaining service 

and/or observational responsibilities, if applicable to the field office 

proposed for closure, have been transmitted as addressed in the MIC's 

recommendation for certification.

    4. User Confirmation of Services: Any valid user complaints received 

related to provision of weather services have been satisfactorily 

resolved and the issues addressed in the MIC's recommendation for 

certification.

    5. Warning and Forecast Verification: Warning and forecast 

verification statistics, produced in accordance with the Closure 

Certification Verification Plan, have been utilized in support of the 

MIC's recommendation for certification.



[59 FR 9923, Mar. 2, 1994 as amended at 61 FR 39865, July 31, 1996; 61 

FR 53311, Oct. 11, 1996; 62 FR 38903, July 21, 1997]



                 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

  *Richmoind, VA..............................  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.............................  TUL

  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

  Elkins, WV..................................  EKN

  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

  Huron, SD...................................  HON

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

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

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

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



[[Page 287]]





  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

``D'' Level Service Airports:

  Alamosa, CO.................................  ALS

  Alpena, MI..................................  APN

  Astoria, OR.................................  AST

  Beckley, WV.................................  BKW

  Caribou, ME.................................  CAR

  Concordia, KS...............................  CNK

  Concord, NH.................................  CON

  Ely, NV.....................................  ELY

  Havre, MT...................................  HVR

  Homer, AK...................................  HOM

  Houghton Lake, MI...........................  HTL

  International Falls, MN.....................  INL

  Kalispell, MT...............................  FCA

  Lander, WY..................................  LND

  Norfolk, NE.................................  OFK

  Sault Ste. Marie, MI........................  SSM

  Scottsbluff, NE.............................  BFF

  Sheridan, WY................................  SHR

  St. Cloud, MN...............................  STC

  Tupelo, MS..................................  TUP

  Valentine, NE...............................  VTN

  Victoria, TX................................  VCT

  Wichita, Falls, TX..........................  SPS

  Williston, ND...............................  ISN

  Winnemucca, NV..............................  WMC

------------------------------------------------------------------------

* Long-line RVR designated site.





[62 FR 38905, July 21, 1997]



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