Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains

This document provides notice that PHMSA and the Federal Railroad Administration (FRA) are publishing a revised Regulatory Impact Analysis (RIA) updating the original RIA associated with the electronically controlled pneumatic (ECP) brake provision of PHMSA's May 8, 2015, Final Rule titled "Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains" (Final Rule). The agencies are publishing the updated RIA in response to the mandate of the Fixing America's Surface Transportation (FAST) Act. The updated RIA incorporates new testing and analysis the National Academy of Sciences (NAS) reviewed, recommendations from two U.S. General Accountability Office (GAO) audits, and updates to the costs and benefits of the provision of the Final Rule based on current economic conditions. PHMSA invites comments on all aspects of the updated RIA and the agency will respond to all relevant comments received.