Maryland transportation laws
What Maryland has enacted on transportation, what each law requires, and what the bills still moving would do. Maryland is one of 41 states that enacted a transportation law in the 2025 and 2026 sessions.
9 new Maryland laws take effect in 2027
- Bills in scope
- 17bills in scope
- Past committee
- 6past committee
- Most recent action
- 3 August 2026most recent action
Transportation laws enacted in Maryland
5 transportation laws enacted in the Maryland Legislature in the 2025 and 2026 sessions, newest first. Each links to the legislature's own page.
What it requires: A railroad train used in connection with the movement of railroad freight may not be operated in the State unless it has a crew of at least two individuals. This requirement applies to freight trains sharing the same rail corridor as high-speed passenger or commuter trains, but excludes hostler service and utility employees in yard service.
Freight rail
What it requires: The Secretary shall adopt regulations for issuing permits to vehicles transporting manifested international freight in sealed seagoing containers on semitrailers from Seagirt Marine Terminal. Permitted vehicles must not exceed 100,000 pounds gross maximum vehicle weight, comply with axle requirements, travel only on specified routes during established hours at specified maximum speeds, and travel only to destinations authorized by the Secretary.
Truck size, weight and road use, Ports, maritime and freight corridors
- HB 189Drunk Driving - Commercial Driver's Licenses - Disqualification From DrivingTook effect 1 October 2025
What it requires: The Motor Vehicle Administration shall disqualify individuals from driving commercial motor vehicles for 1 year if convicted of drunk driving offenses while operating commercial vehicles, or if they drive or attempt to drive any motor vehicle with alcohol concentration of 0.08 or greater while holding a commercial license. Disqualification periods extend to 3 years for hazardous material transport violations and lifetime for two or more separate violations.
Motor carriers and commercial drivers
- SB 187Drunk Driving - Commercial Driver's Licenses - Disqualification From DrivingTook effect 1 October 2025
What it requires: The Motor Vehicle Administration shall disqualify individuals from driving commercial motor vehicles for one year if convicted of drunk driving offenses while operating commercial vehicles, or if they drive or attempt to drive a commercial motor vehicle with blood or breath alcohol concentration of 0.04 or greater. Disqualification extends to three years if hazardous materials were being transported.
Motor carriers and commercial drivers
What it requires: Operators of vehicles carrying farm products under an exceptional hauling permit must comply with specified weight limits, axle configurations, and spacing requirements. Vehicles carrying fluid milk products may operate on interstate highways. Operators must possess the permit and proof of current preventive maintenance inspection.
Transportation in Maryland, by topic
Motor carriers and commercial drivers
4 bills, 2 enacted. Enacted in 34 states.
Freight rail
4 bills, 1 enacted. Enacted in 17 states.
Autonomous trucks and delivery devices
4 bills. Enacted in 8 states.
Truck size, weight and road use
1 bill, 1 enacted. Enacted in 17 states.
Ports, maritime and freight corridors
1 bill, 1 enacted. Enacted in 10 states.
Truck and fleet emissions
1 bill. Enacted in 3 states.
Warehouses and delivery
1 bill. Enacted in 5 states.
Transportation bills in Maryland
The bills not yet law, furthest along first, with what each would do.
5Enacted
1Past committee
11Introduced or inactive
17 bills in scope
Past committee
1
What it would do: Prohibits the Department of the Environment from implementing the Advanced Clean Trucks Program until a needs assessment and deployment plan is published, with implementation beginning in model year 2028 or 2029 depending on publication date. Restricts enforcement penalties for ACC II and ACT violations in model years 2027-2028 to situations where manufacturers representing at least 40% market share have agreed to implementation.
Introduced or inactive
11
What it would do: Establishes a regulatory framework for delivery network companies and operators in Maryland, requiring permits for companies, licenses for operators, accessibility standards, transparent payment disclosures, and annual reporting to the Public Service Commission.
What it would do: Authorizes the City of Cumberland to use speed monitoring systems on Interstate 68 portions with a 45 miles per hour speed limit to enforce speed limits exclusively for Class F tractor vehicles operated with Class G freight trailers or semitrailers, with fines funding public safety programs and transportation improvements in the Interstate 68 corridor.
What it would do: Establishes standards for operating fully autonomous vehicles on Maryland highways without human drivers, requires first responder interaction plans and $1,000,000 liability insurance, and subjects personal data collected by autonomous vehicles to the Online Data Privacy Act.
What it would do: Authorizes school vehicle driver trainers employed by county school boards to administer the commercial driver's instructional permit knowledge test to applicants for a commercial driver's license with a school bus endorsement.
What it would do: Establishes standards for operating fully autonomous vehicles on Maryland highways without human drivers, including requirements for automated driving system safety, first responder interaction plans, and $1,000,000 minimum liability insurance. Makes personal data collected by autonomous vehicles subject to the Online Data Privacy Act.
What it would do: Authorizes the Motor Vehicle Administration to issue a Class B commercial driver's license with school bus or passenger vehicle endorsements to non-residents of Maryland who hold equivalent credentials from a neighboring state.
What it would do: Establishes standards for operating fully autonomous vehicles on Maryland highways without a human driver, requiring compliance with federal safety standards, submission of law enforcement interaction plans, proof of security, and identification on vehicle registration.
What it would do: Establishes railroad safety requirements including minimum two-person crews for freight trains, five-minute limits on grade crossing blockages, 8,500-foot maximum train lengths, wayside detector systems on Class IV tracks, and allows union representatives reasonable access to railroad property for safety investigations.
What it would do: Establishes railroad safety requirements including minimum two-person crews for freight trains, five-minute limits on grade crossing blockages, 8,500-foot maximum train lengths, wayside detector systems on Class IV tracks, and allows union representatives reasonable access to railroad property for safety investigations.
What it would do: Requires a human safety operator to be present in fully autonomous vehicles weighing over 10,001 pounds operating on Maryland highways. Mandates manufacturers report collisions, traffic citations, disengagements, and assaults involving such vehicles to the Motor Vehicle Administration.
What it would do: Excludes entities that own or operate railroads powered by magnetic levitation propulsion systems from the condemnation authority granted to railroad companies under Maryland Public Utilities Article sections 5-405 through 5-408.
Bill titles link to the Maryland 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 Maryland have a transportation law?
Yes. Maryland enacted 5 transportation laws in the 2025 and 2026 sessions, among them HB 862, HB 253 and HB 189. Each is listed on this page with what it requires.
When do Maryland's transportation laws take effect?
HB 253 on 1 June 2026, HB 189 on 1 October 2025, SB 187 on 1 October 2025 and SB 203 on 1 October 2025. The others have no single date in their text.
Which transportation bills are moving in Maryland?
1 bill not yet law has passed a committee or a chamber, the furthest along HB 1556 (passed committee).
What does Maryland legislate on most in transportation?
Motor carriers and commercial drivers (4 bills), Freight rail (4 bills) and Autonomous trucks and delivery devices (4 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 Maryland
- AI in Maryland58
- Alcohol in Maryland142
- Cannabis in Maryland55
- Children's Online Safety in Maryland11
- Cybersecurity in Maryland28
- Data center and energy in Maryland21
- Data Privacy in Maryland40
- Employment in Maryland155
- Healthcare in Maryland335
- Insurance in Maryland208
- Intellectual Property in Maryland12
- Packaging and PFAS in Maryland21
- Payments and fintech in Maryland16
- Rental housing in Maryland59
- Tobacco and nicotine in Maryland14
- All jurisdictions
Transportation legislation in other jurisdictions
52 more currently hold bills in this tracker
- Congress101
- New Jersey72
- Texas61
- New York49
- Missouri39
- Iowa34
- Oklahoma33
- California30
- Massachusetts30
- Louisiana25
- Illinois24
- Pennsylvania24
- Kentucky21
- Utah21
- Hawaii20
- Mississippi20
- Montana20
- Nebraska19
- Virginia18
- 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 Maryland's transportation law changes
An alert when a bill moves, and one report a month on what changed in every state and Congress.