United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2026_register executive 2026-08-01 article Notices D09002ee1e61a7f98 D09002ee1e61a8009 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Railroad Administration originator org United States Government Agency or Subagency This document provides the public with notice that, on July 22, 2026, the Massachusetts Bay Transportation Authority (MBTA) submitted a request for amendment (RFA) to its FRA-approved Positive Train Control Safety Plan (PTCSP). 91 FR 48970 https://www.govinfo.gov/app/details/FR-2026-08-03/2026-15674 2026-15674 fr03au26-109 4910-06-P Docket Number FRA-2010-0030 https://www.govinfo.gov/app/details/FR-2026-08-03/2026-15674 https://www.govinfo.gov/content/pkg/FR-2026-08-03/html/2026-15674.htm https://www.govinfo.gov/content/pkg/FR-2026-08-03/pdf/2026-15674.pdf 1 p. 48970 48970 91 FR 48970 Massachusetts Bay Transportation Authority's Request To Amend Its Positive Train Control Safety Plan and Positive Train Control System; Federal Register Vol. 91, Issue NOTICE 2026-15674 DEPARTMENT OF TRANSPORTATION Federal Railroad Administration 2026-08-24 Docket Number FRA-2010-0030 4910-06-P 2026-15674 Notice of availability and request for comments.

This document provides the public with notice that, on July 22, 2026, the Massachusetts Bay Transportation Authority (MBTA) submitted a request for amendment (RFA) to its FRA-approved Positive Train Control Safety Plan (PTCSP).

FRA will consider comments received by August 24, 2026. FRA may consider comments received after that date to the extent practicable and without delaying implementation of valuable or necessary modifications to a PTC system. Gabe Neal, Staff Director, Signal, Train Control, and Crossings Division, telephone: 816-516-7168, email: Gabe.Neal@dot.gov. Request for Amendment Massachusetts Bay Transportation Authority; Positive Train Control Safety Plan and Positive Train Control System, Gabe.Neal@dot.gov https://railroads.dot.gov/research-development/program-areas/train-control/ptc/railroads-ptc-dockets https://www.regulations.gov https://www.regulations.gov/privacy-notice https://www.transportation.gov/privacy regulations.gov Vol. 91, no. 147 Office of the Federal Register, National Archives and Records Administration 2026-08-03 continuing daily deposited born digital 519 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2026-08-03 P0b002ee1e61a5b18 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr03au26 https://www.govinfo.gov/app/details/FR-2026-08-03 https://www.govinfo.gov/content/pkg/FR-2026-08-03/pdf/FR-2026-08-03.pdf https://www.govinfo.gov/content/pkg/FR-2026-08-03/xml/FR-2026-08-03.xml fdlp 48755 49267 DGPO 2026-08-01 2026-08-01 FR-2026-08-03 machine generated eng FR FR-2026-08-03 91 147