Statewide Portable Equipment Registration Program (PERP)

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.

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NOTICE: PUBLIC HEARING ANNOUNCEMENT:

Notice of public hearing to consider the adoption of proposed amendments to the regulations applicable to portable diesel engines and diesel engines used in off-road and on-road vehicles (January 28, 2010)

NOTICE: PUBLIC WORKSHOP ANNOUNCEMENT:

Proposed amendments to the Portable Diesel Engine Air Toxic Control Measure and the Portable Equipment Registration Program Regulation

November 9, 2009 Workshop Slide Presentation

NOTICE: CRITICAL REGISTRATION REQUIREMENTS

To register in PERP, all engines must meet the following tier levels:

Engines rated 50 to 75 bhp: Interim Tier 4.

Engines rated 75 to 750 bhp: Tier 3.

Engines rated over 750 bhp and over: Tier 2.

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

As of December 31, 2009 for new engine applications: All engines must meet the current non-road tier standards listed above.

As of December 31, 2009 for existing engine registrations for engines rated 50 bhp and greater:

Registrations are cancelled for diesel engines which are not certified non-road Tier 1 or higher unless the engine is re-designated for emergency-use or low -use.
Registrations are cancelled for non-certified spark-ignition engines unless the engine meets PERP Regulation Table 1 emission standards.

PERP Advisory

Options to help you receive PERP registrations in the shortest time

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

Application Forms Please be sure you are using the most recent form(s) posted on this website.
How to complete applications

Recordkeeping and Reporting Forms

Forms to help you meet recordkeeping and reporting requirements

Notification

Online notification

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

Information and schedule for training courses on the Portable Engine ATCM and other ARB training courses

List Server and Contact Information

Join a list serve to be sent information related to PERP regulation activities

PERP Contact Information

Application forms can be downloaded and mailed directly to the ARB at:

California Air Resources Board
Statewide Portable Equipment Registration Program
P.O. Box 2038
Sacramento, CA 95812-2038

Information can also be obtained by contacting the Statewide Registration Program Information Line at (916) 324-5869 or sending electronic mail to portable@arb.ca.gov. The fax machine number is (916) 324-5864. Alternatively, you can write to the above post office box for more information.