Gasoline tank truck certification

Certification Process for tank truck owner/operators: 

All owners or operators of gasoline transport trucks are required to fill out the online application. ​A completed Method 27 form must be included with the application.

For testing companies: 

Test providers must return this document to trailer owner/operator.

AQCC Regulation 7 Rule changes effective February 14, 2020:

  • Annual vapor integrity pressure tests (Method 27) must be performed October through April. Certification tests performed in the summer, in the ozone non-attainment area, will be denied without prior approval. 

  • Orange certification stickers are no longer required or issued by the Air Pollution Control Division and all the certifications will be processed electronically through the online application. 

  • Drivers must maintain copies of the certification paperwork, for the vehicle in use, and provide upon request the APCD personnel.

Notice of Regulation Change

Additional Information:

Colorado Air Quality Control Commission Regulation 7, Control of Ozone via Ozone Precursors and Control of Hydrocarbons via Oil and Gas Emissions (Regulation 7 Part B IV.D), requires an annual vapor integrity certification test for gasoline transport trucks. 

Frequently asked questions