DETROIT (AP) — The U.S. is seeking to forcibly limit how fast trucks, buses and other large vehicles can travel on the nation’s highways.

A new proposal Friday would impose a nationwide limit by electronically capping speeds with a device on newly made U.S. vehicles that weigh more than 26,000 pounds. Regulators are considering a cap of 60, 65 or 68 mph, though that could change.

Whatever the speed limit, drivers would be physically prevented from exceeding it.

The proposal, which comes from the National Highway Traffic Safety Administration and Federal Motor Carrier Safety Administration, does not force older heavy vehicles to add the speed-limiting technology, but the regulators are still considering it.

The government said capping speeds for new large vehicles will reduce the 1,115 fatal crashes involving heavy trucks that occur each year and save $1 billion in fuel costs.

While the news is being welcomed by some safety advocates and non-professional drivers, many truckers said that such changes could lead to dangerous scenarios where they are traveling at much lower speeds than everyone else.

The rule has been ensnared in a regulatory maze in the decade since the nonprofit group Roadsafe America issued its first petition in 2006.