Statewide Portable Equipment Registration Program (PERP)
This page last updated September 14, 2015
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 sections will assist you with the PERP registration process
and present facts on the Portable Diesel Engine Airborne Toxic Control
IMPORTANT: Please mail your PERP applications and other program correspondence to the address below. Using the general P.O. Box for the Air Resources Board, or other addresses, will delay delivery. Hand-delivered applications will no longer be accepted. Also, there is no designated fax number for receiving PERP applications. Faxing and mailing your application may result in duplicate charges to your credit card.
P.O. Box 2038
Sacramento, CA 95812
Drought Related Projects: Notification within 24 hours of operation is required for water well drill rigs, water pumps, or project-related equipment where the portable engine is not permitted, or registered in PERP, and is operating during California's drought emergency. The notification form is available here and should be mailed to the above address, or via email when beginning operation at each project location.
PORTABLE DIESEL ENGINE AIRBORNE TOXIC CONTROL MEASURE
January 1, 2013, the Portable Engine Airborne Toxic Control
Measure (ATCM) fleet emission standards went into effect. The
owners of portable engines to submit a Fleet Compliance
the Air Resources Board by March 1, 2013. For more
click here: Fleet
The next Fleet Compliance Report will be due March 1, 2017.
Changes to Fleets
The ATCM also requires owners to ensure the average PM emission level for their fleet does not fall out of compliance due to changes in the fleet. Owners of portable diesel engine fleets who are adding or removing engines are strongly encouraged to re-calculate their fleet average. Other changes, such as modifying a registration to be low-use or emergency only-use can also affect the fleet emissions average. We recommended that once you have completed the Fleet Reporting Tool save it and update it any time your portable fleet changes.
- Diesel engine owners submitting applications for PERP registration for the first time must include a Fleet Compliance Report. This includes transfer of existing registrations for engines you have purchased.
- Contact us at firstname.lastname@example.org if you have any questions regarding the fleet compliance requirements -- or see the contact list at the bottom of this page.
CRITICAL ENGINE REGISTRATION REQUIREMENTS
For initial registration into PERP, diesel engines must meet eligibility requirements as outlined below, or be a Flex engine certified under the flexibility provisions of Federal 40 CFR 1039.625, or 40 CFR Part 89.102, or California Code of Regulations section 2423 (d).
Effective July 1, 2015
- 50 to 74bhp - Final Tier 4
- 75 to 174bhp - Interim Tier 4 (until further notice)
- 175 to 749bhp - Final Tier 4
- 750 and above - Interim Tier 4 (until further notice)
PERP eligibility requirements take effect six months after the federal
and CARB non-road engine emission standards for engine manufacturers
change -- as shown here: Non-road Diesel
Engine Certification Tier Chart (PDF)
Engines on Two-Engine Vehicles
vehicle Frequently Asked Questions
- For further information on two-engine vehicles, see the In-Use Off-Road Diesel Vehicle Regulation homepage.
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
- A common question is raised about what constitutes portable versus stationary operation of equipment. The PERP regulation defines portable operation and stationary sources however, there are some specific circumstances that, depending on each situation, the use of PERP-registered units may not be compatible with the objectives of PERP and those of local air districts. Because such determinations are very fact dependent, we recommend you contact the district with questions about whether your portable equipment operation requires a district permit or can use PERP registration. The California Air Pollution Control Officers Association (CAPCOA) has prepared a document which addresses these issues: Explanation & Examples of Uses of PERP
- Application Forms
- Which Forms to Use
Note: PERP does not accept applications by Fax. Please mail them directly to the address listed on the application forms or renewal invoice.
PERP Application Submittal Options:
Recordkeeping and Reporting Forms
Air District Notification
This is 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.
- Information and schedule for training courses on the Portable Engine ATCM and other ARB training courses.
List Server and Contact Information
PERP Contact Information
- Zuzana Vona: (916) 229-0759 email@example.com
- Carol Carlson: (916) 229-0591 firstname.lastname@example.org
- Greg McMahon: (916) 229-0581 email@example.com
- Jimmy Aguila: (916) 229-0976 firstname.lastname@example.org
- Ava Yaghoobirad: (916) 229-0957 email@example.com
- Michele Burkett: (916) 229-0963 firstname.lastname@example.org
- Rich Miller: (916) 229-0962 email@example.com
- Kelly Weatherford: (916) 229-0864 firstname.lastname@example.org
- Bradley Shaw: (916) 229-0972 email@example.com
- Write to:
ARB / PERP
P.O. Box 2038
Sacramento, CA 95812