Form REG 1000 at a glance
What it is: REG 1000 is the Application for Clean Air Vehicle Decals, and DMV uses this information to issue clean air vehicle decals.
Where and when to file: Apply at: dmv.ca.gov/Clean Air Vehicle Decal.
Only the registered owner of record may apply.
A filled-in Form REG 1000 example: original decals

How to fill out Form REG 1000, box by box
Vehicle
Section 1 - Current registered owner information

Enter the true full name (last, first, middle) or business name and the driver license or ID card number, and, if there is a co-owner, the co-owner true full name (last, first, middle) and driver license or ID card number.
Enter the physical residence or business address (include St., Ave., Rd., Ct., etc.) and unit no. (indicate Apt., Ste., etc.), then the city, county, state and zip code.
Enter the mailing address, if different from the physical address, with the unit no., city, state and zip code.
In Section 1 - Current Registered Owner Information, the name printed must match DMV records. A Change of Address (DMV 14) form is also required if the address listed is a recent change of address, or contains a separate mailing address, currently not on DMV records.
Section 2 - Clean air vehicle decals

In Section 2 - Clean Air Vehicle Decals, under I am requesting, check the boxes that apply: Original decals (never before issued to vehicle), Correct/update information or Transfer to new owner.
Check Replacement ID Card or Replacement Decals and enter the Previous Decal Number.
Under Replacement ID Card / Replacement Decals, check Stolen, Lost or Damaged or Not Received.
Under Vehicle Motive Power is, check one: Electric (E), Hydrogen fuel cell (R), Plug-in hybrid (Q), Liquefied Petroleum Gas (LPG) (P) or Compressed Natural Gas (CNG) (N).
For Liquefied Petroleum Gas (LPG) (P) or Compressed Natural Gas (CNG) (N): Advisory: Check Tank Expiration Date. Check Original Manufacturer Equipment (example: Honda, Ford, etc.) or After Market, listed on the CARB website under BAF Technologies, IMPOC, Landi Renzo, etc.
Section 3 - Important information and certification

In Section 3 - Important Information and Certification (California Vehicle Code §5205.5): for a vehicle purchased on or after January 1, 2018, participation in the Clean Air Vehicle (CAV) Decal program and the Clean Vehicle Rebate Project (CVRP) is based upon both gross annual income and vehicle type.
Under California Vehicle Code §5205.5 and Section 3, I have read the important information and certify (or declare) under penalty of perjury under the laws of the State of California that the foregoing is true and correct, then enter the printed name, telephone number, email address and date, and sign as the registered owner.
More rules for Form REG 1000
Failure to provide mandatory information may result in rejection of clean air vehicle application and return of original application.
Common questions about Form REG 1000
Where do I file it?
Apply at: dmv.ca.gov/Clean Air Vehicle Decal.
Are there fees?
A $27 fee is required (checked November 8, 2026).
Sources
[1] Form REG 1000 (REV. 3/2024), Application for Clean Air Vehicle Decals, California Department of Motor Vehicles (the Official source link on this page).

