4/17/03-Gov. Judy Martz has signed a bill to protect truckers’ rights to use muffled engine compression brakes.
Under HB237, which requires a muffler on any motor vehicle equipped with an engine compression brake, cities cannot prohibit a truck from using an engine compression brake if the truck is equipped with a muffler.

3/27/03-State lawmakers have amended a bill to protect truckers' rights to use muffled engine compression brakes.
While considering HB237, which requires a muffler on any motor vehicle equipped with an engine compression brake, the Senate Highways & Transportation Committee amended the bill to make it clear that cities cannot prohibit a truck from using an engine compression brake device if the truck is equipped with a muffler.
The amended version passed the Senate March 24, and has been returned to the House for approval of the amendment.
It is vital you contact your elected House official and let them know the importance of engine compression brakes to road safety.
For contact information, visit http://leg.state.mt.us/css/sessions/58th/roster.asp?HouseID=1&SessionID=80#K, or call OOIDA's membership department at 1-800-444-5791 and they'll look it up. For bill status, call (406) 444-4800.

1/20/03-Montana lawmakers are considering a proposal that would muffle engine compression brakes. Introduced Jan. 7 by Rep. John Brueggeman (R-Lake County), HB237 would require a muffler on any motor vehicle equipped with an engine compression brake. Violators could be fined up to $500.
The bill has been referred to the House Transportation Committee. For general information, call (406) 444-4800.