WASHINGTON — Initiated in March 2011, the federal notice of proposed rulemaking by NHTSA responds to a petition by the American Trucking Associations and Roadsafe America to cap the top speed of newly manufactured trucks at 68 mph.
FMCSA joined the process in May 2013 by adding a retrofit provision for existing trucks.
The NHTSA and FMCSA notices are technically separate, but their dates are synched up to advance simultaneously. Both agencies submitted their proposals to the Office of the Secretary of Transportation on Aug. 8, and both target a publication date of Dec. 12, 2014.
Once an NPRM is published, the federal agencies are required to open a public comment period – in this case for 90 days.