Signed into law

  • Tennessee’s IMPROVE Act— legislation that increases the state gas tax and other transportation-related fees— was signed into law by Gov. Bill Haslam (R) on April 26. The bill is estimated to generate $350 million annually.
  • Indiana’s House Bill 1002— a bill that will increase the state gas tax and additional transportation-related fees—was signed into law by Gov. Eric Holcomb (R) on April 27. The bill will generate an estimated $1.2 billion annually by 2024.

Approved by the legislature

  • The Montana legislature approved a state motor fuel tax increase and implemented new electric vehicle registration fees on April 22. The bills are pending approval by Gov. Steve Bullock (D).

Progress being made

  • The South Carolina Senate reached an agreement on April 27 on House Bill 3516 (approved by the House on March 1) with a veto-proof majority of 30-9 to approve the bill with amendments. The Senate’s version raises the gas tax increase to 12 cents-per-gallon (2 cents more than the House version) and includes state department of transportation reforms and several tax credits. It maintains several aspects of the House version, including new fees for electric and hybrid motor vehicles, indexing the gas tax to the Consumer Price Index, and increasing vehicle related fees and fines. The Senate version would generate an estimated $640 million annually after the tax breaks. The chamber vote came after lawmakers voted to sit down with Sen. Tom Davis (R-Beaufort), who indicated his intent to filibuster the legislation. The bill now goes back to the House for consideration of the changes.
  • The Oklahoma Senate approved an amended bill on April 27 to create a new $100 electric vehicle registration fee and $30 hybrid vehicle registration fee. The bill goes back to the House, where the bill was initially approved on March 8.


  • Colorado legislation to increase the state sales tax to fund needed transportation improvements failed in a committee vote on April 25. Lawmakers are now turning their attention to a bond proposal.