65+ banked SOx certificates of record, recorded prices, and a direct line to the holders.
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Every registry entry in Sacramento Metro AQMD that includes SOx, from Active ERC certificate list, June 22, 2026. These are banked credits — the register shows what exists, not what the holder has agreed to sell. Open the interactive registry to send an inquiry on any of them.
| Holder of record | Certificate(s) | Source / pollutants banked |
|---|---|---|
| City of Sacramento | 28 certificates | ROG, NOx, CO, PM10, SOx |
| Sacramento Municipal Utility District (SMUD) | 26 certificates | ROG, NOx, CO, PM10, SOx |
| Aerojet Rocketdyne, Inc. | 6 certificates | ROG, NOx, CO, PM10, SOx |
| Granite Construction | 4 certificates | ROG, NOx, CO, PM10, SOx |
| Kaiser Hospital | see district list | ROG, NOx, CO, PM10, SOx |
No SOx transactions were reported to CARB for Sacramento Metro AQMD in 2022. See the statewide price tables and SOx prices in other districts for a reference range; local scarcity sets the price.
SOx demand is thinner than NOx or ROG, and SOx volumes often trade as add-ons to a larger deal — but recorded 2022 sales ran as high as $20,000/ton in the Bay Area.
ERCs are district-bound: a SOx credit banked in Sacramento Metro AQMD is usable in Sacramento Metro AQMD (or its air basin with district board approval). Tell us the tonnage your permit requires and we contact the holders above, confirm what is available, and can represent you as buyer's broker — no fee to inquire.
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All Sacramento Metro AQMD ERCs · SOx ERCs statewide · ERC prices · How to buy · How to sell