In response to complaints about "rolling roadblocks" of trucks and RVs taking up both lanes of the Interstate as they try to climb the hill west of Albuquerque, New Mexico is testing a new 65-mph minimum speed limit on a 23-mile section of I-40.

The regular speed limit on that stretch is 75 mph. The usual minimum speed limit is 40 mph. This pilot project will study the effect of minimum speed limits on interstate traffic. If the project is successful after a year, higher minimum speed limits for passing lanes could be set in other locations in the state.
State police will increase the number of patrols in the area to enforce the new minimum speed. Violators face a $53 fine.
Transportation chief Peter Rahn notes that the new minimum is not just aimed at truckers. It applies to anyone in the left-hand lane.