The District of Columbia has adopted Part 393 of the Federal Motor Carrier Safety Regulations (FMCSRs), as currently in effect.
Part 393 applies to vehicles with a gross vehicle weight rating or gross combination weight rating exceeding 10,000 pounds, and to any vehicle transporting hazardous materials requiring placards.
| First Aid Kit | No requirement |
| Tires | Tire Chains - Between October 15 and April 15, whenever snow, sleet, or freezing rain is falling or whenever there is a covering or coating of snow, sleet, or ice on any street marked as a Snow Emergency Route, a vehicle may not become stalled on that street due to the fact that the driving wheels of the vehicle are not equipped with tire chains or effective snow tires. |