13 banked CO certificates of record, recorded prices, and a direct line to the holders.
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Every registry entry in Butte County AQMD that includes CO, from District ERC Registry, August 2025. 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 |
|---|---|---|
| Pacific Oroville Power, Inc. | 5 certificates (02-15-68 … 02-15-72) | NOx 280,698 · ROC 36,327 · PM10 98,517 · PM2.5 41,887 · SOx 60,633 · CO 3,641,049 (lb/yr) |
| Highway 70 Industrial Park, LP | 4 certificates (04-08-49 … 04-08-52) | NOx 64,840 · ROC 108 · PM10 748 · PM2.5 528 · CO 1,344 (lb/yr) |
| Turkey Track Rice Ranch | 03-11-63 | NOx 2,904.7 · ROC 2,625.5 · PM10 3,519.2 · PM2.5 3,295.7 · SOx 614.5 · CO 32,063.6 (lb/yr) |
| Sacramento Packing, Inc. | 09-10-63, 09-10-64, 09-10-65 | NOx 7,750 · ROC 1,101 · PM10 761 · PM2.5 761 · SOx 60 · CO 6,213 (lb/yr) |
No CO transactions were reported to CARB for Butte County AQMD in 2022. See the statewide price tables and CO prices in other districts for a reference range; local scarcity sets the price.
CO offset demand is episodic — most districts attain the CO standard — but large banked CO volumes exist (single certificates exceed 100 tons) and typically price accessibly, trading alongside other pollutants.
ERCs are district-bound: a CO credit banked in Butte County AQMD is usable in Butte County 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 Butte County AQMD ERCs · CO ERCs statewide · ERC prices · How to buy · How to sell