TRUCRS, Clean Truck Check, AB 579
When are CTC testing results due? - CORRECT ANSWER-Within 90 days of
compliance deadline
Have CTC deadlines already passed? - CORRECT ANSWER-Yes, initial reporting and
testing were due January of 2024.
What are the upcoming CTC deadlines? - CORRECT ANSWER-2024 fees are due
July-December 2024
Are school buses exempt from TRUCRS? - CORRECT ANSWER-No, but they are
exempt from the reporting.
What vehicles are subject to TRUCRS? - CORRECT ANSWER-Diesel fueled with
GVWR over 14,000 lbs
What does TRUCRS require for school buses? - CORRECT ANSWER-Either a PM filter
or low-use exemption (less than 1,000 miles per calendar year)
Are CNG school buses subject to TRUCRS? - CORRECT ANSWER-No, diesel only
What vehicles are subject to Clean Truck Check? - CORRECT ANSWER-Non-gasoline
ICE vehicles with GVWR over 14,000 lbs operating on public roads in CA
Are there fees associated with clean truck check? - CORRECT ANSWER-$30 annually
What does Clean Truck Check require? - CORRECT ANSWER-Emissions testing by a
CARB-certified tester using CARB-approved equipment, reporting, and annual fees
When are school bus purchases required to be 100% zero emission? - CORRECT
ANSWER-Jan 1, 2035
Are there any exceptions to the 100 % ZEV purchase requirements by Jan 1, 2035? -
CORRECT ANSWER-A one-time extension may be granted for 5 yrs if the LEA
determines zero-emission is not feasible due to terrain and route constraints
