2+ banked CO certificates of record, recorded prices, and a direct line to the holders.
Home / District guides / North Coast Unified AQMD / CO
Every registry entry in North Coast Unified AQMD that includes CO, from District ERC Banking Register, Active Registry (last rev. Oct 5, 2016; printed Nov 22, 2022). Covers Del Norte, Humboldt & Trinity counties. Amounts are annual totals summed from the register's four quarters, in tons.. 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 |
|---|---|---|
| Humboldt Bay Harbor, Rec. & Conservation District | 13-037-12-2 | Former pulp mill — Samoa (Humboldt) · NOx 359.0 · CO 310.9 · ROC 166.3 · PM10 74.2 · SOx 19.4 (t/yr) |
| California Redwood Company | 16-004-12 | Mill — Eureka (Humboldt) · NOx 5.56 · PM10 3.37 · CO 2.63 (t/yr) |
No CO transactions were reported to CARB for North Coast Unified 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 North Coast Unified AQMD is usable in North Coast Unified 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 North Coast Unified AQMD ERCs · CO ERCs statewide · ERC prices · How to buy · How to sell