HB 4415 requires county road commissions to use competitive bidding for certain road projects that were previously exempt. This bill directly affects county road commissions by modifying existing rules (MCL 224.10) to expand the requirement for public bidding on specific infrastructure work. The key provision mandates that counties must solicit competitive bids for projects like road construction or repairs that meet defined criteria, ensuring transparency in spending. This change applies to all counties in Michigan where such projects were previously handled without competitive processes.
This bill extends the state of energy emergency in Michigan by an additional 77 days, effective July 1, 2026. The measure allows the sale of E15 fuel in several counties where current regulations previously restricted it to lower vapor pressure gasoline. By suspending these fuel requirements, the extension aims to increase fuel supply options and help manage rising gas prices for consumers and businesses. The resolution requires approval from both the House and Senate before being sent to the Governor.
HB 4183 increases the motor fuel tax rate and expands the types of fuels subject to the tax under Michigan law. It directly affects motor fuel sellers (like gas stations) and consumers through higher costs for gasoline and other taxed fuels. The bill amends Section 8 of the 2000 Motor Fuel Tax Act (MCL 207.1008) to implement these changes, which became law immediately upon approval by the Governor on October 7, 2025.
HB 4390 expands Michigan's vehicle code to allow testing of oral fluid (such as saliva) for controlled substances, alongside blood, breath, or urine, when determining impairment. It directly affects commercial drivers who refuse chemical tests for controlled substances or alcohol while operating commercial vehicles. The bill adds a new definition of "other bodily fluid" to include oral fluid and creates a process for "preliminary oral fluid analysis" conducted by certified experts at the scene. This change updates existing suspension rules for commercial drivers who refuse testing, ensuring consistent enforcement for controlled substances alongside alcohol. The policy change specifically targets commercial motor vehicle operators who decline chemical tests for drugs or alcohol.
HB 4391 expands Michigan's vehicle code to allow law enforcement to test for intoxication using other bodily fluids beyond blood or breath, such as urine or saliva. It directly affects drivers suspected of operating a vehicle while impaired, updating sections 625a, 625c, and 625g of the 1949 Michigan Vehicle Code (MCL 257.625a et seq.). The bill amends existing testing methods to include these additional fluids, providing more flexibility for officers during DUI investigations. The bill passed the Michigan House on July 17, 2025, with immediate effect.
HB 4426 amends Michigan's Motor Carrier Safety Act (MCL 480.12d) to set a minimum age of 21 for drivers transporting hazardous materials requiring placards under federal rules. It maintains the existing 18-year-old minimum for most commercial driving but specifically raises the age requirement for hazardous materials transport. The bill does not change medical waiver or grandfathered driver provisions. This change directly affects commercial drivers operating in Michigan who transport hazardous materials requiring placards.
HB 4214 would have modified Michigan's vehicle code (MCL 257.601b & 257.682) to change the procedures drivers must follow when approaching a school bus displaying yellow flashing lights. The bill directly affected all drivers operating vehicles in Michigan who encounter school buses with yellow lights, which typically indicate the bus is preparing to stop for loading/unloading children. It aimed to adjust the specific actions drivers must take during this phase of bus operation. The bill was defeated in the legislature on June 26, 2025, with a vote of 52-51.
HB 4185 changes how Michigan's general sales tax revenue is distributed. It directs 15% of the 4% sales tax to cities, villages, and townships through the Glenn Steil Revenue Sharing Act. Sixty percent goes to the state school aid fund (including all 2% tax from aviation fuel sales), while 27.9% of 25% from vehicle/fuel sales funds the transportation system. Additionally, it requires $9-12 million annually from computer software sales to the Michigan health initiative fund.
HB 4184 increases Michigan's excise tax on aviation fuel from 3.10 cents to 4.00 cents per gallon. It directly affects fuel sellers, airlines, and airport operators by changing how this tax revenue is distributed. The bill modifies Section 203 of the Aeronautics Code to require 35% of the tax revenue to fund the state aeronautics fund and 65% to fund qualified airports. It also retains the 1.5-cent refund for airlines operating interstate flights and the exemption for fuel used in leaded racing fuel production.
HB 4230 creates a new "neighborhood road fund" in Michigan's state treasury, funded by $100 million annually from income tax revenues (specifically from Section 695 of the 1967 Income Tax Act). This fund directly affects county road commissions, city and village road agencies, and the local bridge advisory board. Key provisions require $100 million yearly to be reserved exclusively for repairing closed, restricted, and critical bridges (managed by the advisory board), while the remaining funds are distributed to road agencies based on their road mileage - $100,000 per county commission plus a mileage-based share for all counties, and similarly for cities/villages. The bill specifies these funds must cover road preservation, maintenance, and preventative work without requiring local matching funds.
