Portable Equipment Registration

Owners and operators of portable engines (>50HP) and portable equipment can register their units under the California Air Resources Board (CARB) Statewide Portable Equipment Registration Program (PERP) in order to legally operate their equipment throughout California without having to obtain individual permits from local air districts. As an alternative to the State PERP program, the District offers a local registration program for portable engines and portable equipment operated solely in Butte County.

Airborne Toxic Control Measure (ATCM)– for Diesel Particulate Matter from Portable Engines Rated at 50 Horsepower and Greater (amended 11/30/18). This regulation is applicable to both State and local registration programs.

District Fact Sheet for Portable Equipment (December 2022)Emission Standards Tier 1-4 Tables

Statewide Portable Equipment Registration Program (PERP):

State Portable Equipment Registration Program (PERP)

PERP Local Air District Notification Form

State PERP – Frequently Asked Questions

Application Forms for State PERP

District Policy for Approved Uses of PERP (December 2012)

District (local) Portable Equipment Registration Program:

District Rule 440 – Portable Equipment Registration District Rule 512 – Portable Equipment Registration Fee

Application Forms for District Registration

Website Accessibility Statement

Butte County Air Quality Management District (the "District") is committed to ensuring that its services are accessible to all members of the public. As part of this commitment, the District strives to provide an accessible website compatible with the Web Content Accessibility Guidelines (WCAG) version 2.1, AA, and commercial screen reading software. Features of the website are created to allow individuals with vision and other impairments to understand and use the website to the same degree as someone without disabilities.

If you need any special assistance or accommodations:

Contact our compliance support team via telephone at: (888) 765-1970

Ongoing Compliance Information

Compliance Coordinator

The District has designated a Compliance Coordinator for website disability-related accommodations. The Compliance Coordinator has received training in website accessibility and updates the site in accordance with those best practices and requirements.

Compliance Procedures

The District is working to ensure all website content complies with the Americans with Disabilities Act and controlling State laws. In an ongoing effort to continually improve and remediate accessibility issues, the website is regularly scanned to ensure ongoing compliance, and timely changes are made to any inaccessible content if found.

Accessible Documents Policy

The District is committed to providing all documents hosted on the website in an accessible format or making accessible alternatives available.

Linked Documents and Third Parties

Please note that this site may link out to third-party websites that do not have accessible content. This site may also include documents provided by third parties. While we cannot control the accessibility of content provided by third parties, we are happy to assist any member of the public with reading and accessing content on our site.

Report a Website Accessibility Issue

We are committed to your ability to access all content, and we will respond to all requests in a timely manner. If you need assistance or accommodations while accessing content on this website, please contact our Compliance Coordinator via the form below: