Truck lettering requirements by state.
The federal rule (name, USDOT, both sides, 50 feet) applies everywhere. This is what each state adds. States with a detail page have a state number or a size rule of their own; the rest follow the federal rule with an intrastate threshold. Checked September 2026.
| State | Intrastate USDOT and what the state adds |
|---|---|
| Alabama | Yes (26,001 lbs) (confirm with the state agency) |
| Alaska | Yes (14,001 lbs) (confirm with the state agency) |
| Arizona | Yes (26,001 lbs) |
| Arkansas | Not on FMCSA lists (confirm with the state agency) |
| California | Yes (10,001 lbs), plus CA number |
| Colorado | Yes (16,001 lbs), CO suffix |
| Connecticut | Yes (18,001 lbs) (confirm with the state agency) |
| Delaware | Yes (26,001 lbs) (confirm with the state agency) |
| District of Columbia | Not found (confirm with the state agency) |
| Florida | Yes (26,001 lbs or placarded hazmat) |
| Georgia | Yes (10,001 lbs), GA suffix |
| Hawaii | Conflicting; PUC number 2.5 inch (confirm with the state agency) |
| Idaho | Yes (26,001 lbs); name and USDOT 2 inch reported (confirm with the state agency) |
| Illinois | Not on FMCSA lists; ICC number for licensed carriers (confirm with the state agency) |
| Indiana | Yes (10,001 lbs); 390.21 marking (confirm with the state agency) |
| Iowa | Yes (26,001 lbs) (confirm with the state agency) |
| Kansas | Yes (10,001 lbs) (confirm with the state agency) |
| Kentucky | Yes (10,001 lbs) (confirm with the state agency) |
| Louisiana | Not on FMCSA lists; PSC number for some carriers (confirm with the state agency) |
| Maine | Intrastate USDOT threshold differs by agency; name on truck tractors (confirm with the state agency) |
| Maryland | Yes (10,001 lbs) (confirm with the state agency) |
| Massachusetts | Yes (10,001 lbs) |
| Michigan | Yes (26,001 lbs); MPSC authority for regulated carriers (confirm with the state agency) |
| Minnesota | Yes (10,001 lbs); name and city both sides (confirm with the state agency) |
| Mississippi | Not on FMCSA lists; PSC number for regulated carriers (confirm with the state agency) |
| Missouri | Yes (26,001 lbs) (confirm with the state agency) |
| Montana | Yes (26,001 lbs) (confirm with the state agency) |
| Nebraska | Yes (10,001 lbs) (confirm with the state agency) |
| Nevada | Yes (26,001 lbs); for-hire permit number 2 inch (confirm with the state agency) |
| New Hampshire | Not on FMCSA lists; name both sides (confirm with the state agency) |
| New Jersey | Yes (10,001 lbs); 3 inch name and city, GVWR over 26,000 |
| New Mexico | Not on FMCSA lists; PRC number 2.5 inch (confirm with the state agency) |
| New York | Yes (10,001 lbs); NYC adds address (confirm with the state agency) |
| North Carolina | Yes (over 26,000 lbs), USDOT ... NC, 3 inch |
| North Dakota | Not on FMCSA lists (confirm with the state agency) |
| Ohio | Yes for-hire; PUCO number may replace USDOT |
| Oklahoma | Yes (26,001 lbs) (confirm with the state agency) |
| Oregon | Yes; private intrastate 26,000 and under exempt |
| Pennsylvania | Yes; PA PUC number 2 inch |
| Rhode Island | Not on FMCSA lists; name, city, state over 10,000 (confirm with the state agency) |
| South Carolina | Yes (10,001 lbs); name, city, state (confirm with the state agency) |
| South Dakota | Not on FMCSA lists (confirm with the state agency) |
| Tennessee | Not on FMCSA lists; name, certificate and unit number for for-hire (confirm with the state agency) |
| Texas | Yes; TxDMV number, 2 inch rule on 3+ axle trucks (confirm with the state agency) |
| Utah | Yes; weight lettering over 14,000 lbs (confirm with the state agency) |
| Vermont | Not on FMCSA lists; state rules adopt federal safety regs at 26,001 lbs (confirm with the state agency) |
| Virginia | Not on FMCSA lists; for-hire name both sides (10,000 lbs) (confirm with the state agency) |
| Washington | Yes; UTC permit for household goods |
| West Virginia | Yes (10,001 lbs) (confirm with the state agency) |
| Wisconsin | Yes (26,001 lbs) (confirm with the state agency) |
| Wyoming | Yes (26,001 lbs) (confirm with the state agency) |
Thresholds for states without a detail page come from FMCSA-derived lists and agency guidance and should be confirmed with the state before you rely on them. We add a detail page as each state's rule is verified against its statute.