Portable Equipment Registration Program (PERP)

Owners or Operators of engines and certain types of equipment can register their units under the Air Resources Board’s (ARB) Statewide Portable Equipment Registration Program (PERP) in order to operate their equipment throughout California.  Typically, PERP-registered engines may only be at a stationary source for limited jobs unrelated to the main operations of the facility.  Please contact the District, [email protected], if you have questions regarding PERP equipment.

Frequently Asked Questions – FAQs

Notify the District

If the PERP equipment is registered in another air District, and will be operating in another air District, then notification is required.  Please contact District if the equipment will be operating in the air District for more than five (5) days.  This notification shall occur within two (2) working days of commencing operations in the District.  Notification may be completed on-line through the ARB website, or by email.  Please include the following information in the notification:  PERP registration number (six digits), company name, contact person, contact person telephone number, location where equipment will be operating, date of equipment arrival, and the estimated time in the District (days).

Additional Information