Statewide Portable Equipment Registration Program (PERP)
This page last updated April 18, 2017
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 Measure (ATCM).IMPORTANT: PLEASE BE ADVISED THAT PERP PROCESSING TIMES MAY BE IMPACTED DUE TO THE DEPLOYMENT OF A NEW DATA MANAGEMENT SYSTEM.
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. Faxed and hand-delivered applications are no longer accepted.
P.O. Box 2038
Sacramento, CA 95812
Notification within 24 hours of operation is required for project-related equipment where the portable engine and/or equipment unit is not permitted or registered in PERP, and is operating during a declared emergency event. The notification form is available here and should be mailed to the above address, or via email when beginning operation at each emergency event location.
Drought Related Projects: Executive Order B-40-17 lifts the drought emergency in all California counties except Fresno, Kings, Tulare and Tuolumne, where emergency water-well drilling projects will continue to help address diminished groundwater supplies. For on-going and/or future groundwater projects in California counties other than the four listed above where portable equipment will be used, please contact the local air district for air quality permitting information.
PORTABLE DIESEL ENGINE AIRBORNE TOXIC CONTROL MEASURE
On January 1, 2013, the Portable Engine Airborne Toxic Control Measure (ATCM) fleet emission standards went into effect. The ATCM required owners of portable engines to submit a Fleet Compliance Report to the Air Resources Board by March 1, 2013. For more information, click here: Fleet Compliance Reporting.
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-use only 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.
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).
- 50 to 74bhp - Final Tier 4
- 75 to 174bhp - Final Tier 4
- 175 to 750bhp - Final Tier 4
- greater than 750 - 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
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
common question is raised about what constitutes portable versus
stationary operation of equipment. The PERP regulation
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
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
Air Pollution Control Officers Association (CAPCOA) has prepared a
document which addresses these issues: Explanation
& Examples of Uses of PERP
PERP Contact Information
- Carol Carlson: (916) 229-0591 firstname.lastname@example.org
- Greg McMahan: (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
- Bradley Shaw: (916) 229-0972 firstname.lastname@example.org
- Zuzana Vona: (916) 229-0759 email@example.com
- Ily Mason: (916) 229-0584 firstname.lastname@example.org
ARB / PERP
P.O. Box 2038
Sacramento, CA 95812
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
and schedule for training courses on the Portable Engine ATCM and other
ARB training courses.