Amendment of Class D Airspace and Class E Airspace Over Tri-Cities, TN

What it does

This action proposes to amend Class D and Class E airspace over Tri-Cities, TN. This action would modify the dimensions of the Tri-Cities, TN Class D and Class E2 airspace to appropriately contain Instrument Flight Rules (IFR) operations at the Tri-Cities Airport. This action would also remove the Tri-Cities, TN Class E4 airspace, as it is no longer necessary. This action would also modify the Tri- Cities, TN Class E5 airspace to appropriately contain IFR operations at the airport. This action would also update verbiage in the Class D and Class E2 airspace legal descriptions to comply with current FAA guidance. This action would also update the airport name for Tri-Cities Airport in the Class D, Class E2, and Class E5 airspace legal descriptions.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 71

Before this

430 earlier Federal Register documents under regulation identifier 2120-AA66 since Jan. 1, 2025.

• Aug. 11, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace; Canton, IL
• Aug. 11, 2026 Final rule. Amendment of Class E Airspace; Bedford, IN
• Aug. 11, 2026 Final rule. Amendment of Class D and Class E Airspace and Revocation of Class E Airspace; Muncie and Alexandria, IN
• Aug. 10, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace; Coleman, TX
• Aug. 10, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace; Havana, IL
• Aug. 10, 2026 Final rule. Amendment of United States Area Navigation Route T-373 in the Vicinity of King Salmon, Alaska
• Aug. 7, 2026 Final rule. Revocation of Class E Airspace; Lake Geneva, WI
• Aug. 7, 2026 Final rule. Amendment of Class D and Class E Airspace; Chicago/Rockford, IL

Since then:

• Aug. 12, 2026 Final rule. Amendment of Class E Airspace Over Staunton, VA
• Aug. 13, 2026 Notice of proposed rulemaking (NPRM); correction; extension of comment period. Establishment of Class E Airspace; Havana, IL
• Aug. 17, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace; DeKalb, IL
• Aug. 17, 2026 Notice of proposed rulemaking (NPRM). Revocation of Class E Airspace; Santa Elena, TX
• Aug. 18, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace; Trading Bay Production Airport, Trading Bay, AK
• Aug. 25, 2026 Final rule. Amendment of Restricted Areas R-2505, R-2524, R-2508, and R-2515 in California
• Aug. 31, 2026 Final rule. Airspace Designations; Incorporation by Reference
• Sept. 1, 2026 Notice of proposed rulemaking (NPRM). Amendment of Class D Airspace and Class E Airspace Over New Haven, CT
• Sept. 4, 2026 Final rule. Revocation of Class E Airspace; Point Pleasant, WV
• Sept. 4, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace Over Hardy, VA
• Sept. 4, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace Over Lexington, VA
• Sept. 10, 2026 Final rule. Amendment of Class D and Class E Airspace and Establishment of Class E Airspace; Clovis, NM, and Portales, NM
• Sept. 15, 2026 Notice of proposed rulemaking (NPRM). Modification of Class D and Class E Airspace Areas; Roberts Field/Redmond Municipal Airport, Redmond, OR
• Sept. 15, 2026 Notice of proposed rulemaking (NPRM). Establishment of United States Area Navigation Route T-337 and Amendment of Very High Frequency Omnidirectional Range Federal Airways V-101 and V-484 Near Twin Falls, ID
• Sept. 15, 2026 Notice of proposed rulemaking (NPRM). Amendment of Class E Airspace Over Pittsfield, ME
• Sept. 15, 2026 Final rule. Amendment of Class D and Class E Airspace Over Hyannis, MA
• Sept. 18, 2026 Final rule. Amendment of Class E Airspace; Alma, MI
• Sept. 18, 2026 Final rule; correction. Establishment of United States Area Navigation Route T-581 in the Vicinity of Missoula, Montana
• Sept. 22, 2026 Final rule. Establishment of Class E Airspace; Ottawa, IL
• Sept. 25, 2026 Notice of proposed rulemaking (NPRM). Amendment of Class E Airspace; Del Rio, TX
• Sept. 28, 2026 Supplemental notice of proposed rulemaking (SNPRM). Establishment, Modification, and Revocation of Class E Airspace; Alaska, AK
• Oct. 2, 2026 Notice of proposed rulemaking (NPRM). Amendment of Class D and E Airspace, Revocation of Class E Airspace; Montgomery, AL
• Oct. 5, 2026 Notice of proposed rulemaking (NPRM). Amendment of Domestic Very High Frequency Omnidirectional Range (VOR) Federal Airways V-16, V-184, and Revocation of V-284 and V-577; Eastern United States
• Oct. 6, 2026 Notice of proposed rulemaking (NPRM). Modification of Class E Airspace; Gunnison-Crested Butte Regional Airport, Gunnison, CO
• Oct. 6, 2026 Final rule. Establishment of Class E Airspace; Peoria, IL
• Oct. 13, 2026 Final rule. Amendment of Jet Routes J-83 and J-85, and Very High Frequency Omnidirectional Range (VOR) Federal Airways V-415 and V-605; Eastern United States
• Oct. 13, 2026 Final rule. Amendment of United States Area Navigation (RNAV) Route T-437; Eastern United States
• Oct. 14, 2026 Final rule. Amendment of Boundaries for Restricted Areas R-5301, R-5302B, and R-5302C; NC
• Oct. 14, 2026 Final rule. Amendment of Domestic Very High Frequency Omnidirectional Range (VOR) Federal Airways V-16, V-35, V-37, V-53, V-133, V-136, V-143, V-259, V-310, V-364, V-409, V-415, V-454, and V-605; Eastern United States
• Oct. 16, 2026 Final rule. Establishment of Class E Airspace; Coleman, TX
• Oct. 16, 2026 Final rule. Establishment of Restricted Areas R-5306G and R-5306H and Amendment of Restricted Areas R-5306C and R-5306E; Cherry Point, NC
• Oct. 16, 2026 Final rule. Establishment of United States Area Navigation Route T-550 and Revocation of Very High Frequency Omnidirectional Range Federal Airway V-320
• Oct. 20, 2026 Final rule, administrative correction. Airspace Designations; Incorporation by Reference Amendment of FAA Order JO 7400.11M
• Oct. 22, 2026 Final rule. Establishment of Class E Airspace; DeKalb, IL
• Oct. 22, 2026 Final rule. Revocation of Class E Airspace; Santa Elena, TX
• Oct. 22, 2026 Final rule. Establishment of Class E Airspace; Havana, IL
• Oct. 26, 2026 Final rule. Establishment of Class E Airspace; Canton, IL
• Oct. 28, 2026 Final rule. Modification of Class E Airspace, Samaritan North Lincoln Hospital Heliport, Lincoln City, OR
• Oct. 28, 2026 Final rule; correction. Establishment of Class E Airspace; DeKalb, IL; Correction
• Oct. 28, 2026 Final rule; correction. Establishment of Class E Airspace; Ottawa, IL; Correction
• Oct. 29, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class D Airspace; Winter Haven, FL
• Oct. 30, 2026 Final rule. Amendment of Class D and Establishment of Class E Airspace; Chandler and Phoenix, AZ
• Nov. 4, 2026 Notice of proposed rulemaking (NPRM). Amendment of Domestic Very High Frequency Omnidirectional Range (VOR) Federal Airways V-44, V-170, and V-312; Eastern United States
• Nov. 4, 2026 Final rule; correction. Amendment of Domestic Very High Frequency Omnidirectional Range (VOR) Federal Airways V-16, V-35, V-37, V-53, V-133, V-136, V-143, V-259, V-310, V-364, V-409, V-415, V-454, and V-605; Eastern United States
• Nov. 5, 2026 Final rule. Modification of Class D and Class E Airspace Areas; Roberts Field/Redmond Municipal Airport, Redmond, OR
• Nov. 6, 2026 Notice of proposed rulemaking (NPRM). Establishment of Class E Airspace, Shelter Cove Airport, Shelter Cove, CA
• Nov. 9, 2026 Final rule; correction. Amendment of Class D and Establishment of Class E Airspace; Chandler and Phoenix, AZ

What happens next and when

Comments must be received on or before September 25, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket FAA-2026-8449 on Regulations.gov
• Title 14 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register