California: trucking data for small carriers

What this means for a small carrier

Roadside inspections in California ended with a truck or driver out of service 15.2% of the time in 2025, 3.3 points below the national figure. Enforcement is targeted, so this reflects where and whom inspectors stop as well as truck condition. Diesel in the California region averaged $8.082 a gallon in the week of Oct 5, 2026, 188 cents above the U.S. average of $6.199. That is a regional average, not the price at your stop. The most frequent recorded hazard is wind, hail and tornado, about 108 event-days a year, peaking in March. 4.9% of California bridges are rated poor (6.6% nationally); 396 are posted or restricted. A poor rating is not a closure, and a posting may not apply to your weight, but check the route before you commit to it.

For a small carrier this is a planning checklist, not a verdict. Put the state-specific cost drivers into your own numbers: the fuel price you actually pay, the days of the year weather is most likely to slow you, and whether the routes you run cross posted bridges. Then price the lane on your cost per mile, not on a national average.

The measures where California sits furthest from the middle of the 51 are, by rank: 1 of 51 for roadside inspections in 2025; 1 of 51 for active carriers; 51 of 51 for driver out-of-service share. Rank 1 means the highest value, not the best, and counts follow the size of the state, so read shares before counts.