Modification of Class E Airspace; Denver International Airport, Denver, CO

DEPARTMENT OF TRANSPORTATION <SUBAGY>Federal Aviation Administration</SUBAGY> <CFR>14 CFR Part 71</CFR> <DEPDOC>[Docket No. FAA-2025-5384; Airspace Docket No. 25-ANM-152]</DEPDOC> <RIN>RIN 2120-AA66</RIN> <SUBJECT>Modification of Class E Airspace; Denver International Airport, Denver, CO</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Federal Aviation Administration (FAA), DOT. <HD SOURCE="HED">ACTION:</HD> Notice of proposed rulemaking (NPRM). <SUM> <HD SOURCE="HED">SUMMARY:</HD> This action proposes to modify the Class E airspace extending upward from 700 feet above the surface, and remove the Class E airspace extending upward from 1,200 feet above the surface, at Denver International Airport, Denver, CO. Additionally, this action proposes an administrative modification to the airport's Class E airspace legal description. These actions would support the safety and management of instrument flight rules (IFR) operations within the airspace proposed herein. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> Comments must be received on or before February 13, 2026. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> Send comments identified by FAA Docket No. FAA-2025-5384 and Airspace Docket No. 25-ANM-152 using any of the following methods: * <E T="03">Federal eRulemaking Portal:</E> Go to <E T="03">www.regulations.gov</E> and follow the online instructions for sending your comments electronically. * <E T="03">Mail:</E> Send comments to Docket Operations, M-30; U.S. Department of Transportation, 1200 New Jersey Avenue SE, Room W12-140, West Building Ground Floor, Washington, DC 20590-0001. * <E T="03">Hand Delivery or Courier:</E> Take comments to Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. * <E T="03">Fax:</E> Fax comments to Docket Operations at (202) 493-2251. <E T="03">Docket:</E> Background documents or comments received may be read at <E T="03">www.regulations.gov</E> at any time. Follow the online instructions for accessing the docket or go to the Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. FAA Order JO 7400.11K, Airspace Designations and Reporting Points, and subsequent amendments can be viewed online at <E T="03">www.faa.gov/air_traffic/publications/.</E> <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Nathan A. Chaffman, Federal Aviation Administration, Western Service Center, Operations Support Group, 2200 S 216th Street, Des Moines, WA 98198; telephone (206) 231-3460. </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> <HD SOURCE="HD1">Authority for This Rulemaking</HD> The FAA's authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. Subtitle I, Section 106 describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the agency's authority. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of the airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This regulation is within the scope of that authority as it would modify Class E airspace to support IFR operations in Denver, CO. <HD SOURCE="HD1">Comments Invited</HD> The FAA invites interested persons to participate in this rulemaking by submitting written comments, data, or views. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should submit only one time if comments are filed electronically, or commenters should send only one copy of written comments if comments are filed in writing. The FAA will file in the docket all comments it receives, as well as a report summarizing each substantive public contact with FAA personnel concerning this proposed rulemaking. Before acting on this proposal, the FAA will consider all comments it receives on or before the closing date for comments. The FAA will consider comments filed after the comment period has closed if it is possible to do so without incurring expense or delay. The FAA may change this proposal in light of the comments it receives. <E T="03">Privacy:</E> In accordance with 5 U.S.C. 553(c), DOT solicits comments from the public to better inform its rulemaking process. DOT posts these comments, without edit, including any personal information the commenter provides, to <E T="03">www.regulations.gov,</E> as described in the system of records notice (DOT/ALL-14 FDMS), which can be reviewed at <E T="03">www.dot.gov/privacy.</E> <HD SOURCE="HD1">Availability of Rulemaking Documents</HD> An electronic copy of this document may be downloaded through the internet at <E T="03">www.regulations.gov.</E> Recently published rulemaking documents can also be accessed through the FAA's web page at <E T="03">www.faa.gov/air_traffic/publications/airspace_amendments/.</E> You may review the public docket containing the proposal, any comments received and any final disposition in person in the Dockets Operations office (see <E T="02">ADDRESSES</E> section for address, phone number, and hours of operations). An informal docket may also be examined during normal business hours at the Northwest Mountain Regional Office of the Federal Aviation Administration, Air Traffic Organization, Western Service Center, Operations Support Group, 2200 S 216th Street, Des Moines, WA 98198. <HD SOURCE="HD1">Incorporation by Reference</HD> Class E2 and Class E5 airspace designations are published in paragraphs 6002 and 6005, respectively, of FAA Order JO 7400.11, Airspace Designations and Reporting Points, which is incorporated by reference in 14 CFR 71.1 on an annual basis. This document proposes to amend the current version of that order, FAA Order JO 7400.11K, dated August 4, 2025, and effective September 15, 2025. These updates would be published in the next update to FAA Order JO 7400.11. FAA Order JO 7400.11K, which lists Class A, B, C, D, and E airspace areas, air traffic service routes, and reporting points, is publicly available as listed in the <E T="02">ADDRESSES</E> section of this document. <HD SOURCE="HD1">The Proposal</HD> The FAA is proposing an amendment to 14 CFR part 71 that would modify the transitional Class E airspace at Denver International Airport, Denver, CO, by expanding the portion of the Class E airspace extending upward from 700 feet above the surface and removing the portion extending upward from 1,200 feet above the surface. The transitional Class E airspace at Denver serves Denver International Airport and also provides containment for IFR aircraft departing/arriving at Denver's surrounding airports. The Class E airspace at Denver extends to 17.8 miles south of Centennial Airport, Denver, CO, to provide containment for Centennial Airport's arriving IFR aircraft operations below 1,500 feet above the surface. The extension is not sufficient in size to fully capture the ZOMBZ SIX ARRIVAL Area Navigation (RNAV) procedure that guides aircraft arriving at Centennial Airport until established on an instrument arrival procedure (or otherwise). The Class E airspace extending upward from 700 feet above the surface at Denver should be extended approximately four miles to the south to better contain the ZOMBZ SIX ARRIVAL (RNAV) procedure. The portion of Class E airspace extending upward from 1,200 feet above the surface at Denver should be removed, as the Denver Class E Domestic En Route Airspace provides sufficient containment and duplication is not necessary. Finally, the legal description for Denver's Class E airspace extending upward from at least 700 feet above the surface uses the Denver Very High Frequency Omnidirectional Range/Distance Measuring Equipment (VOR/DME) as its reference point (which is incorrectly listed as a VOR). In accordance with the VOR Minimum Operational Network (MON) Implementation Program (81 FR 48694), the Denver VOR/DME should no longer be used to describe the airspace as it was selected for phase two discontinuance from the National Airspace System. A “Point of Origin” with identical geographical coordinates as the Denver VOR/DME should be used to describe the airspace in its place. <HD SOURCE="HD1">Regulatory Notices and Analyses</HD> The FAA has determined that this proposed regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. It, therefore: (1) is not a “significant regulatory action” under Executive Order 12866; (2) is not a “significant rule” under DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a regulatory evaluation as the anticipated impact is so minimal. Since this is a routine matter that will only affect air traffic procedures and air navigation, it is certified that this proposed rule, when promulgated, will not have a significant economic impact on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. <HD SOURCE="HD1">Environmental Review</HD> This proposal will be subject to an environmental analysis in accordance with FAA Order 1050.1G, FAA National Environmental Policy Act Implementing Procedures, prior to any FAA fi ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 12k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━