Statewide Portable Equipment Registration Program (PERP)

This page last reviewed Decemeber 21, 2012


image sample of portable equipment

Owners or operators of portable engines and certain other 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 without having to obtain individual permits from local air districts. The following is provided to help you complete the registration process.

NOTICE:  Effective immediately, PERP will no longer accept applications and renewal invoice payments via fax due to security issues with credit card numbers transmitted by this method.  Please mail them directly to the address listed on the application form and renewal invoice.

NEW REQUIREMENTS

Recently, there were revisions made to the PERP Regulation and Portable Engine Airborne Toxic Control Measure (ATCM).  These revisions became effective on February 19, 2011, and all holders of PERP Registrations are now subject to the new requirements.  Updated operating conditions reflecting the new requirements will be issued upon renewal for all existing registrations. A flyer containing a summary of the changes will be mailed to all holders of PERP registration. En Espanol Aqui.

CRITICAL REGISTRATION REQUIREMENTS

For 2012, engine manufacturers are required to produce engines in all power categories that are certified to the Interim Tier 4 level. Engines that were produced under the "flex" provisions of either 40 CFR part 89.102 or 1039.625 will continue to be eligible for initial registration in PERP.

Pursuant to sections 93116.3(b)(2)(B) and 93116.3.1 of the Portable Engine ATCM, ARB will accept initial registration applications for non-flex Tier 3 engines rated at 75 to 750 bhp and also non-flex Tier 2 engines rated over 750 bhp only until June 30, 2012.

On July 1, 2012 to apply for initial registration in PERP, all non-flex diesel engines rated 50 bhp and above must be certified to the interim Tier 4 emission standard.

The fleet standards from the Portable Engine ATCM take effect January 1, 2013. Please see our flyer about this requirement:  New Fleet Requirements Flyer. En Espanol aqui.

See Off-Road Compression-Ignition (Diesel) Engine Tiers

REQUIREMENTS FOR ENGINES ON TWO-ENGINE VEHICLES

RENTAL EQUIPMENT RECORDKEEPING

Effective February 19, 2011, the recordkeeping requirements for rental equipment registered in PERP have been revised.  We have created useful guide to the new requirements for both rental companies and rental customers. En Espanol aqui.

PERP Application Submittal Options:

Frequently Asked Questions (FAQ)

  • The requirements for portable equipment can be complicated, so we have compiled a list of the most commonly asked questions with answers that may help you with this subject.  Portable FAQ document

Application Forms

Recordkeeping and Reporting Forms

Air District Notification

For notifying air districts for operation of registered equipment units (not engines).
Notification is required if an equipment unit (not an engine) will be at a location  for more than five days. Here is an easy-to-use online form for assistance in meeting this requirement.

Training

List Server and Contact Information

PERP Contact Information

  • PERP Information Line: (916) 324-5869
  • email
  • Write to:

    ARB / PERP
    P.O. Box 2038
    Sacramento, CA 95812

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