| Election Date | State | Title | Outcome |
|---|---|---|---|
| June 5, 2018 | California | Proposition 69: Requires That Certain New Transportation Revenue Be Used For Transportation Purposes | Passed |
| Nov. 6, 2018 | California | Proposition 6: Eliminates Certain Road Repair and Transportation Funding. Requires Certain Fuel Taxes and Vehicle Fees Be Approved by the Electorate | Failed |
| Nov. 6, 2018 | Connecticut | measure: Constitutional Amendment Question 1 | Passed |
| Nov. 6, 2018 | Georgia | Referendum A: Provides for a homestead exemption for residents of certain municipal corporations | Passed |
| Nov. 6, 2018 | Louisiana | Act 720: Proposed Amendment No. 4 | Passed |
| Nov. 6, 2018 | Maine | measure: Question 3 | Passed |
| Nov. 6, 2018 | North Dakota | Initiated Statutory Measure No. 4: Pertaining to the Establish Personalized Vehicle Plates for Volunteer Emergency Responders | Passed |
| Nov. 6, 2018 | New Mexico | measure: Bond Question C | Passed |