🚨 Effective September 28, 2026, new Maryland regulations under the Code of Maryland Regulations (COMAR) 11.15.27 make it easier for qualifying Pennsylvania dump trucks to take advantage of Maryland's special dump service weight allowances.

The change follows a determination by the International Registration Plan (IRP) that Maryland's previous requirements violated the interstate registration agreement. Previously, out-of-state carriers needed a separate Maryland registration and a Maryland address to qualify for the higher weight allowances. Under the new rules, these requirements are eliminated for qualifying IRP-apportioned vehicles.

The regulations apply to out-of-state dump trucks with four or more axles, including a qualifying lift axle, operating at a gross vehicle weight above 55,000 pounds. To take advantage of the higher weight allowances, carriers must still meet Maryland's lift axle certification requirements.

➡️ What Weight Allowances Apply?

Maryland's dump service provisions allow qualifying vehicles to operate at gross weights up to 70,000 pounds on 4 axles on all interstate highways in MD per MD. Transportation Code Ann. § 13-919, subject to applicable vehicle and highway restrictions. 

Companies should note that qualifying dump trucks cannot pull a trailer of any kind. 

➡️ Dump Service Certificate Replaces Second License Plate

Under the updated requirements, qualifying out-of-state dump trucks will be issued a Dump Service Certificate instead of a second physical metal license plate.

To obtain the certificate, carriers must submit documentation certifying that the vehicle's lift axle meets Maryland's requirements.

Unlike Maryland, Pennsylvania does not require lift axles to be certified. As a result, Pennsylvania carriers seeking to take advantage of Maryland's higher dump service weight allowance may need to obtain the required lift axle certification from their vehicle manufacturer, second-stage manufacturer, or authorized dealer before submitting their documentation to the Maryland MVA.

The certification must be documented on letterhead by the manufacturer, second-stage manufacturer, or authorized dealer. Carriers must also submit MVA Form VR-98, the required vehicle compliance certification, and a side-view photograph of the vehicle.

The documentation must be submitted in person at a Maryland MVA full-service branch. An appointment is required and can be scheduled through the MVA website using a designated appointment type. There is no fee, and lift axle certification is a one-time requirement unless the vehicle no longer meets the required specifications.

➡️ What About Trucks That Already Have Maryland Dump Service Tags?

Companies that currently have dual registration and Maryland dump service plates may continue using those plates until they expire.

Upon expiration, carriers will need to visit an MVA branch and complete the new certification process to continue qualifying for the special weight allowance.

➡️ Drivers Must Carry the Certificate

Drivers and operators of affected vehicles must have the Dump Service Certificate available for display inside the vehicle.

The certificate must be available to verify compliance with Maryland's commercial vehicle requirements. Carriers should communicate this change to their drivers and update their fleet procedures to ensure the required documentation is present before vehicles operate in Maryland.

Failure to maintain the required documentation could create compliance issues during roadside inspections or enforcement activities.

Maryland Dump Service Weight Allowances: Before and After September 28, 2026

Note: These figures reflect Maryland's special dump service weight allowances, not necessarily the maximum legal weight for every vehicle. Applicable axle weights, vehicle configurations, and highway restrictions still apply.

Maryland Dump Truck Weight Limits — Effective September 28, 2026

Sources: Maryland MVA dump truck registration guidance and COMAR 11.15.27.

➡️ What Trucking Companies Should Do

Motor carriers, fleet managers, and drivers operating dump service vehicles in Maryland should review the updated requirements, confirm whether their vehicles are affected, and ensure that drivers have the required certificate available.

Carriers seeking to qualify for Maryland's higher dump service weight allowance should:

• Confirm that their vehicles meet Maryland's lift axle and other equipment requirements.
• Obtain the required lift axle certification from the manufacturer, second-stage manufacturer, or authorized dealer.
• Prepare MVA Form VR-98, the vehicle compliance certification, and a side-view photograph of the vehicle.
• Schedule an appointment at any Maryland MVA full-service branch to submit the required documentation and complete the certification process.
• Ensure drivers understand the applicable weight restrictions and lift axle operating requirements.

Staying informed about regulatory changes helps transportation professionals maintain compliance, avoid unnecessary delays, and keep their operations running smoothly.

✅ The Bottom Line

Effective September 28, 2026, qualifying Pennsylvania dump trucks operating under IRP apportioned registration can access Maryland's special dump service weight allowance without obtaining a second Maryland registration or maintaining a Maryland address. However, carriers must still meet Maryland's lift axle certification requirements and obtain the appropriate documentation before operating at the higher weights.