Left lane law revisions under review coast to coast

March-April 2020

Keith Goble


Left lane use is a constant area of focus from state to state. Legislators around the country are attempting to address the issue.

OOIDA and the National Motorists Association say that blocking the left lane, whether intentional or not, results in reduced road safety and efficiency.


An Iowa Senate bill would amend the state’s left lane rule.

State law already mandates slower traffic to stay to the right. Violators face $50 fines.

SF389 would specify that drivers who “reasonably should know” another vehicle is attempting to overtake the vehicle would face escalating fines for failure to merge right – up to $1,000.


One Delaware bill would revise the state’s rule governing left lane use.

State law now specifies that vehicles traveling below the posted speed limit must stay to the right.

SB185 would include a requirement that all traffic stay to the right. One provision in the bill singles out large trucks. Specifically, trucks would be prohibited from using the left-hand lane along a stretch of state Route 1 except to pass, turn or exit a highway.

The change would apply to a 50-mile stretch of highway between Interstate 95 and the area south of Dover.

New Hampshire

Truck travel in the left lane is under review at the New Hampshire statehouse.

HB1383 would prohibit commercial vehicles with three or more axles from traveling in the left lanes of an interstate or turnpike. Specifically, the bill would limit truck travel in the left lane from 6 a.m. to 9 a.m. or 4 p.m. to 7 p.m.

Activity elsewhere

An Arizona bill would require signs to be posted to alert travelers about the state’s left lane rule. In Oklahoma, a bill would clarify that vehicles would be in violation of the state’s lane use rule on highways only. One South Carolina bill would attach a two-point violation for improper driving in the left lane. LL

Read more of Land Line’s State Legislative News here.

Keith Goble

Keith Goble has been covering trucking-related laws since 2000. His daily web reports, radio news and “OOIDA’s State Watch” in Land Line Magazine are the industry’s premier sources for information regarding state legislative affairs.