Amendment of Class D Airspace and Removal of Class E4 Airspace Over Nashua, NH

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA-2026-4028; Airspace Docket No. 26-ANE-1] RIN 2120-AA66 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: This action proposes to amend Class D airspace and remove Class E4 airspace over Nashua, NH. This action would remove Class E4 airspace extending upward from the surface for Boire Field Airport, Nashua, NH. This airspace is no longer needed to contain instrument flight rules (IFR) operations at the airport. This action also proposes to replace “Notice to Air Missions” within the Class D airspace legal description with “Notice to Airmen” to comply with current FAA guidance. DATES: Comments must be received on or before June 15, 2026. ADDRESSES: Send comments identified by FAA Docket No. FAA-2026-4028 and Airspace Docket No. 26-ANE-1 using any of the following methods: *  Federal eRulemaking Portal: Go to www.regulations.gov and follow the ( printed page 23037) online instructions for sending your comments electronically. *  Mail: 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. *  Hand Delivery or Courier: 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 Fr…