# 2026-15674: MBTA wants tweaks to its Positive Train Control plan, FRA notices

2026-15674, Massachusetts Bay Transportation Authority's Request To Amend Its Positive Train Control Safety Plan and Positive Train Control System, is a Federal Register notice from Transportation Department, Federal Railroad Administration published 2026-08-03, effective 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. (as of 2026-08-10).

- Canonical: https://policyrisk.com/federal-register/2026-15674
- As of: 2026-08-10
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-15674
- Title: Massachusetts Bay Transportation Authority's Request To Amend Its Positive Train Control Safety Plan and Positive Train Control System
- Type: Notice
- Agencies: Transportation Department; Federal Railroad Administration
- Citation: 91 FR 48970
- Published: 2026-08-03
- Effective: 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.
- Comments close: 2026-08-24
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-08-10

## In one line

MBTA wants tweaks to its Positive Train Control plan, FRA notices

## Summary

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).

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-15674 on federalregister.gov](https://www.federalregister.gov/documents/2026/08/03/2026-15674/massachusetts-bay-transportation-authoritys-request-to-amend-its-positive-train-control-safety-plan)
- [2026-15674 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-08-03/pdf/2026-15674.pdf)

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Source: PRIA, https://policyrisk.com/federal-register/2026-15674 (as of 2026-08-10).