UNITED STATES — The U.S. Postal Service will begin restricting who can haul mail under its contracts, with new rules targeting non-domiciled CDL drivers set to take effect May 1, 2026.
Under the updated policy, non-domiciled commercial driver’s license (CDL) holders will no longer be allowed to transport mail unless they have been properly screened and badged by the U.S. Postal Inspection Service (USPIS).
New Screening Requirements for Contract Drivers
In an April 16 letter to suppliers, USPS leadership instructed contractors to ensure all drivers assigned to postal work meet federal screening and clearance requirements before operating.
The directive states that any non-domiciled CDL driver must complete USPIS vetting before hauling mail. Responsibility for submitting documentation and ensuring compliance falls on the contracted carrier or supplier.
Postal officials also advised contractors to work directly with designated administrative officials to verify driver eligibility and complete the clearance process.
Policy Tied to Federal CDL Crackdown
The move follows earlier USPS guidance issued in January 2026, when officials announced plans to phase out the use of non-domiciled CDL drivers who had not been thoroughly vetted.
USPS said the policy aligns with stricter U.S. Department of Transportation rules aimed at tightening oversight of non-domiciled CDLs under the interim rule “Restoring Integrity to the Issuance of Non-Domiciled CDLs.”
Officials said the changes are intended to improve transportation safety, accountability, and oversight within the agency’s contracted trucking network.
Major Impact on Mail Transportation Network
The Postal Service relies heavily on trucking operations, moving approximately 55,000 loads daily and covering nearly 2 billion miles each year.
Officials said the added screening requirements are part of broader efforts to strengthen safety protocols and reduce risks involving both employee and contract drivers.
The policy will apply to all Postal Service contracts and ordering agreements beginning May 1.
📸 Image(s) used under fair use for news reporting.
