Iowa transportation laws
What Iowa has enacted on transportation, what each law requires, and what the bills still moving would do. Iowa is one of 41 states that enacted a transportation law in the 2025 and 2026 sessions.
- Bills in scope
- 34bills in scope
- Past committee
- 21past committee
- Most recent action
- 27 May 2026most recent action
Transportation laws enacted in Iowa
4 transportation laws enacted in the Iowa Legislature in the 2025 and 2026 sessions, newest first. Each links to the legislature's own page.
- SF 2426A bill for an act relating to sufficient English language proficiency requirements for commercial drivers, providing penalties, and including applicability provisions.Enacted 27 May 2026
What it requires: The department of transportation must examine English language proficiency of applicants for commercial driver's licenses and commercial learner's permits and deny issuance or renewal unless applicants demonstrate proficiency meeting 49 C.F.R. §391.11(b)(2). Persons must not operate commercial motor vehicles without sufficient English proficiency. Commercial motor carriers must not employ commercial drivers lacking sufficient English proficiency.
Motor carriers and commercial drivers
- HF 979A bill for an act relating to vehicles operating with a permit for excessive size or weight, and providing fees.Enacted 6 June 2025
Truck size, weight and road use
- SF 153A bill for an act relating to driver age qualifications for certain commercial motor vehicle drivers operating solely intrastate to transport hazardous material.Took effect 1 July 2025
What it requires: Drivers for private and for-hire motor carriers operating solely intrastate must be at least eighteen years of age, except when transporting hazardous material in quantities requiring placarding, which remains subject to other age requirements. Retail dealers of fertilizers, petroleum products, and pesticides and their employees are exempt from age requirements while delivering these products to farm customers within one hundred miles of their retail place of business.
Motor carriers and commercial drivers, Hazardous materials transport
- SF 377A bill for an act prohibiting the consideration of the deployment, implementation, or use of a motor carrier safety improvement when determining a person’s employment status.Enacted 28 March 2025
Motor carriers and commercial drivers
Transportation in Iowa, by topic
Motor carriers and commercial drivers
14 bills, 3 enacted. Enacted in 34 states.
Freight rail
8 bills. Enacted in 17 states.
Truck size, weight and road use
7 bills, 1 enacted. Enacted in 17 states.
Hazardous materials transport
5 bills, 1 enacted. Enacted in 4 states.
Autonomous trucks and delivery devices
3 bills. Enacted in 8 states.
Warehouses and delivery
2 bills. Enacted in 5 states.
Truck and fleet emissions
1 bill. Enacted in 3 states.
Transportation bills in Iowa
The bills not yet law, furthest along first, with what each would do.
4Enacted
17Past committee
13Introduced or inactive
34 bills in scope
Past committee
17
What it would do: Prohibits driverless-capable vehicles transporting hazardous material from operating without a conventional human driver. Makes vehicle owners liable for personal injury, death, property damage, and traffic violations while the automated driving system is engaged.
What it would do: Requires the Iowa Department of Transportation to examine English language proficiency of commercial driver's license applicants and prohibits issuance unless proficiency is demonstrated. Prohibits commercial motor carriers from employing drivers lacking English proficiency and imposes civil penalties of $3,000 to $10,000 for violations.
What it would do: Requires the Iowa Department of Transportation to examine English language proficiency for commercial driver's license applicants and prohibits issuance without demonstrated proficiency. Imposes civil penalties on carriers employing non-proficient drivers and on drivers operating commercial vehicles without sufficient English proficiency.
What it would do: Requires a conventional human driver to be physically present in driverless-capable vehicles operating for commercial purposes, with ability to monitor and manually intervene, and holding required driver's license and endorsements.
What it would do: Allows motor vehicles powered primarily by natural gas or electric battery to exceed applicable maximum gross weight limits up to 82,000 pounds, with excess weight equal to the difference between the alternative fuel system and a comparable diesel fuel tank and system.
What it would do: Requires railway corporations to notify the governmental entity with jurisdiction over a crossing at least 30 days before closing it for repairs or upgrades, unless the closure could not reasonably be anticipated or is an emergency, and to provide an estimated completion date and updates if delayed. Violations are subject to a schedule one penalty.
What it would do: Requires class I and class II rail carriers to operate locomotives and railroad trains with a crew of at least two qualified railroad employees. Establishes penalties of schedule three for first offense and schedule five for subsequent offenses within three years.
What it would do: Urges Congress to amend federal law to increase the maximum gross weight limit from 80,000 pounds to 96,000 pounds for commercial motor vehicles with seven axles on interstate roads in Iowa and bordering states.
What it would do: Modifies all-systems permit rules for oversize/overweight vehicles to allow travel on primary and secondary roads subject to local authority review, increases allowable weight variance to 12.5 percent, removes raw forest product requirement for international containers, and establishes four dollar per ton single-trip registration fees.
What it would do: Prohibits considering a motor carrier's deployment, implementation, or use of safety improvements when determining whether a person is an employee, independent contractor, or jointly employed employee under any state law.
What it would do: Regulates delivery network companies and drivers by requiring financial liability insurance coverage of at least $50,000/$100,000/$25,000 during delivery periods, mandating written disclosures to drivers, and allowing personal auto insurers to exclude coverage during delivery activities.
What it would do: Allows motor vehicles powered primarily by natural gas or electric battery to exceed applicable maximum gross weight limits up to 82,000 pounds, with the excess weight equal to the difference between the alternative fuel system and a comparable diesel fuel system.
What it would do: Removes the age qualification exemption for drivers transporting placarded hazardous materials in intrastate commerce, making federal age requirements apply. Also removes the exemption for retail dealers of fertilizers, petroleum products, and pesticides delivering within 100 miles of their business.
What it would do: Reduces the maximum closure period for railway crossing repairs from 30 to 20 consecutive days, requires railroad corporations to notify county boards or city councils before closure, allows extensions of up to 20 additional days with approval, and increases penalties to a schedule four penalty for each day of unauthorized closure.
What it would do: Prohibits considering a motor carrier's deployment, implementation, or use of safety improvements when determining whether a person is an employee, independent contractor, or jointly employed employee under Iowa state law.
What it would do: Requires railroad companies to install and maintain at least one defect detector on every railway branch line they operate, with additional detectors every 15 miles on longer lines. Imposes schedule five penalties for non-compliance or detector failures.
What it would do: Removes the age exemption for intrastate commercial motor vehicle drivers transporting hazardous materials requiring placarding, making the minimum age 21 instead of 18 for such operations.
Introduced or inactive
8 of 13 shown
What it would do: Requires applicants for class A, B, or C commercial driver's licenses to certify completion of approved human trafficking prevention training. Requires commercial driver training courses to include at least 30 minutes of such training in English.
What it would do: Prohibits driverless-capable vehicles transporting hazardous material from operating without a conventional human driver physically present, while allowing other driverless-capable vehicles to operate under specified conditions. Violations constitute simple misdemeanor offenses.
What it would do: Requires commercial drivers to demonstrate English language proficiency and authorizes state patrol to conduct assessments during inspections. Imposes $100,000 civil penalties on carriers employing non-compliant drivers and creates a private right of action for persons injured by violations.
What it would do: Prohibits the department of transportation, third-party test examiners, and third-party testers from using any language other than English to examine applicants for commercial driver's licenses.
What it would do: Prohibits the department of transportation, third-party test examiners, and third-party testers from using any language other than English when examining applicants for class C commercial driver's licenses.
What it would do: Prohibits railway corporations from leaving stationary railroad train engines running for more than one hour if the train is within one-half mile of a residential zone in a city. Violations result in fines of $500 to $5,000 per violation.
What it would do: Regulates delivery network companies and drivers by requiring financial liability insurance coverage of at least $50,000/$100,000/$25,000 during delivery service periods, mandating disclosure of insurance terms to drivers, and establishing that drivers are independent contractors exempt from motor carrier regulations.
What it would do: Removes the age exemption for intrastate hazardous material drivers, making DPS driver age qualification rules apply to all commercial motor vehicle drivers transporting placarded hazardous materials. Eliminates the exemption for retail fertilizer, petroleum, and pesticide dealers delivering within 100 miles of their business.
Showing the 25 furthest along of 30. Subscribers see all of them, filtered and searchable. Bill titles link to the Iowa Legislature's own page.
What counts as transportation legislation
In scope: Motor carriers and commercial drivers; truck size, weight and road use; truck and fleet emissions; hazardous materials transport; freight rail; ports, maritime and freight corridors; warehouses and delivery; and autonomous trucks and delivery devices.
Questions
Does Iowa have a transportation law?
Yes. Iowa enacted 4 transportation laws in the 2025 and 2026 sessions, among them SF 2426, HF 979 and SF 153. Each is listed on this page with what it requires.
When do Iowa's transportation laws take effect?
SF 153 on 1 July 2025. The others have no single date in their text.
Which transportation bills are moving in Iowa?
17 bills not yet law have passed a committee or a chamber, the furthest along HSB 598 (passed committee), HSB 699 (passed committee) and SF 2173 (passed committee).
What does Iowa legislate on most in transportation?
Motor carriers and commercial drivers (14 bills), Freight rail (8 bills) and Truck size, weight and road use (7 bills).
Are these summaries reviewed by a lawyer?
No. Which bills count as Transportation bills, and the line on what each law requires or each bill would do, are drafted by software from the bill's own text and not reviewed by an attorney. Every bill links to the legislature's own record: read the text before relying on it. The list covers bills from the 2025 and 2026 sessions.
Other practice areas in Iowa
- AI in Iowa38
- Alcohol in Iowa36
- Cannabis in Iowa18
- Children's Online Safety in Iowa14
- Cybersecurity in Iowa4
- Data center and energy in Iowa11
- Data Privacy in Iowa20
- Employment in Iowa133
- Healthcare in Iowa213
- Insurance in Iowa127
- Intellectual Property in Iowa8
- Packaging and PFAS in Iowa9
- Payments and fintech in Iowa12
- Rental housing in Iowa24
- Tobacco and nicotine in Iowa19
- All jurisdictions
Transportation legislation in other jurisdictions
52 more currently hold bills in this tracker
- Congress101
- New Jersey72
- Texas61
- New York49
- Missouri39
- Oklahoma33
- California30
- Massachusetts30
- Louisiana25
- Illinois24
- Pennsylvania24
- Kentucky21
- Utah21
- Hawaii20
- Mississippi20
- Montana20
- Nebraska19
- Virginia18
- Maryland17
- Washington17
- New Mexico16
- Arizona15
- Tennessee15
- Connecticut14
- West Virginia14
- Minnesota13
- Oregon11
- Florida10
- Michigan10
- Rhode Island10
- South Dakota9
- Arkansas8
- Colorado7
- Georgia7
- Kansas7
- Maine7
- North Carolina7
- Wisconsin7
- South Carolina6
- Alaska5
- District of Columbia5
- Delaware5
- Wyoming5
- Indiana4
- New Hampshire4
- Nevada4
- Vermont4
- Alabama3
- North Dakota3
- Idaho2
- Puerto Rico2
- Ohio1
Know when Iowa's transportation law changes
An alert when a bill moves, and one report a month on what changed in every state and Congress.