The Project consists of: (a) the implementation of PTC technology and associated infrastructure on the entirety of the commuter rail system, in compliance with the Rail Safety Improvement Act of 2008 and the federally-mandated requirements for positive train control systems, (b) the implementation of ATC technology and associated supporting infrastructure on the North Side Lines, in connection with the Rail Safety Improvement Act of 2008 and the federally-mandated requirements for positive train control systems and (c) the design, engineering, procurement and installation (including burial) of a fiber optic cable network supporting the commuter rail system.

This loan replaces the MBTA Positive Train Control RRIF Loan.