Buying Emission Reduction Credits in California
Find credits for your project. Browse listings or tell us what you need, and we will check availability and pricing with sellers. Initial inquiries are free.
Home / Buying ERCs
Get help finding credits
Tell us the air district, pollutant, amount and timing you need. No account is required to send a request.
Who needs to buy ERCs
Some new or expanding facilities require emission offsets under New Source Review. Whether offsets are required, and whether banked ERCs are needed, depends on the project and applicable district rules. The obligation is set by the district: the pollutants, the tonnage, and the offset ratio (1.2-to-1 for ERCs in South Coast under Rule 1303; from 1-to-1 up to 1.5-to-1 in the San Joaquin Valley under Rule 2201, depending on distance and source size; each district’s rule) all come from the permit.
Finding credits that fit your project
Air districts issue and track ERCs in their own registries, but apart from the Bay Area’s ‘available for sale’ flags their registers don’t say who will sell, and district registers do not establish current sale availability or negotiated prices. Credit eligibility depends on the project and district rules. Some interdistrict uses are allowed under Health & Safety Code §40709.6 with required approvals. A register balance alone does not establish eligibility or willingness to sell.
How the Exchange works for buyers
Browse credits offered for sale or send us your project requirements, even if you do not see a matching listing. We contact holders or their representatives to confirm availability, minimum purchases and current asking prices. There is no fee for an initial inquiry. Existing representation is respected. Tell us your requirements even if no listing matches. Any purchase is subject to written terms and the district’s transfer requirements.
What to have ready
Send the project district, pollutants, required quantities and units, permit timeline, and whether you already have broker representation. Include quarterly requirements and confirm whether the offset ratio is already included, if known. A permit worksheet or consultant’s requirements will help us compare suitable supply.
Compare the total purchase cost
Ask for the credit price, seller minimums, partial-transfer terms, brokerage fees and district charges separately. Historical sales provide context, but only a current seller quote establishes an asking price. The district or your permitting consultant must confirm that the proposed credits meet your project requirements.
Browse credits for saleRequest pricing
By pollutant
NOx ERCs · ROG / VOC ERCs · PM10 ERCs · SOx ERCs · CO ERCs · Recorded prices · District guides