California Clean Air Regulations

PORTABLE EQUIPMENT REGISTRATION PROGRAM (PERP): At the public hearing on December 7, 2006, the Air Resources Board adopted emergency revisions to accept "resident" Tier 1 and Tier 2 engines that do not meet the current emission standard in effect at the time of registration. PERP is currently accepting applications for all Tier 1 engines and also Tier 2 engines rated between 175 BHP and 750 BHP if documentation of operating in California at any time between March 1, 2004, and October 1, 2006, is submitted with the application. Documentation can include company equipment inventory, purchase records, usage records, or maintenance records. Form 2A must be submitted with the residency documentation.

These Tier 1 and Tier 2 engines that do not meet the current emission standard must also pay an increased fee for registration that includes back registration fees, back inspection fees, and current registration fees. The amount of the fee will be based on year of purchase, year of manufacture, or Tier 2 start date, depending on certain criteria.

NOTE: YOU CANNOT REGISTER TIER 0 PORTABLE ENGINES (mostly pre-1996), unless your local APCD will allow it. San Diego permits Tier 0 Stipulated Abatement for a one year. South Coast AQMD and Imperial County APCD do NOT register Tier 0 engines and do not permit their unregistered operation at all.

Fines can be substantial. Call us with your questions.

Here's a link to the ARB's webpage on PERP:
http://www.arb.ca.gov/portable/perp/factsheet.htm

In-Use Off-Road Diesel Vehicle Registration:
For the latest information from the Air Resources Board:
http://www.arb.ca.gov/msprog/ordiesel/ordiesel.htm