The district has confirmed it currently holds no banked Emission Reduction Credits. None banked
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The Air Pollution Control Officer confirmed (Aug 2026) the district has no records responsive to a banked-ERC request — i.e., no banked credits on file. Verified coverage, tracked here.
From the district’s own pages, rules and forms, each fact linked to where it is published. Last verified 2026-10-06. Rules and fees change; confirm with the district before you file.
| District office | 22365 S. Airport Road, Sonora, CA 95370 (also listed: 2 S. Green St., Sonora, CA 95370) (source) 209-533-5693 (source) |
|---|---|
| Permitting contact | 209-533-5693 (Air Pollution Control Specialist) (source) |
| District pages | Rules · Permit forms |
| Banking rule | Rule 412, Emission Reduction Credit Rulebook amended July 9, 2021 |
| Banking application | No banking application form published |
| Banking fee | No ERC-specific fee in Regulation VI. Rule 601.A ATC filing fee = 10 hours of the Board-adopted hourly schedule; hourly rate not in rulebook (source) |
| Timelines in the rule |
|
| ERC register | no published ERC register; district confirms no banked credits |
Where the district’s own documents disagree: 'Air Pollution Control' quick-links page links the June 2020 rulebook (DocumentCenter/View/14680) while the Permitting quick-links page links the July 2021 rulebook (View/25477).
Emission Reduction Credits are banked, district-certified reductions in NOx, ROG/VOC, PM10, SOx, or CO. Businesses building or expanding in the district may be required under New Source Review to purchase ERCs to offset new emissions before an air permit issues. Credits are generally usable only within Tuolumne County APCD (or its air basin with district board approval — Health & Safety Code §40709.6), which is why local scarcity sets the price. The district verifies reductions and records every transfer.
District office: (209) 533-5693.
Search Tuolumne County APCD credits on the Exchange Hold credits here? List free
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