Massachusetts Bay Transportation Authority's Request To Amend its Positive Train Control System
This document provides the public with notice that, on July 9, 2026, the Massachusetts Bay Transportation Authority (MBTA) submitted a request for amendment (RFA) to its FRA-certified positive train control (PTC) system. FRA is publishing this notice and inviting public comment on the railroad's RFA.
What this item does
The short version, using the agency's own summary text.
This document provides the public with notice that, on July 9, 2026, the Massachusetts Bay Transportation Authority (MBTA) submitted a request for amendment (RFA) to its FRA-certified positive train control (PTC) system. FRA is publishing this notice and inviting public comment on the railroad's RFA.
Notice of availability and request for comments.
Important dates
The dates that matter most for this item.
Published
July 16, 2026
Comment deadline
August 5, 2026
Who published it
The agencies listed in the official filing.