16 certificates (40994-01 … 40997-06)
NOx 0.54 t/yr, ROG / VOC 0.62 t/yr, PM10 0.68 t/yr, SOx 0.66 t/yr, CO 3.48 t/yr
Home / District guides / San Diego County APCD / National Steel & Shipbuilding
| Holder of record | National Steel & Shipbuilding | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Certificates | 16 certificates (40994-01 … 40997-06) | ||||||||||||
| Air district | San Diego County APCD | ||||||||||||
| Pollutants banked |
| ||||||||||||
| Register source | ERC Banking Registry, Class A active ERCs, last update August 12, 2025; MERC Banking Registry, last update May 18, 2023 · district registry page | ||||||||||||
| Status | Banked — not listed |
| Certificate | Pollutant | Amount (t/yr) | Note |
|---|---|---|---|
| 40994-01 | PM10 | 0.1 | |
| 40995-01 | PM10 | 0.09 | District record number column reads 'Cert not found' |
| 40995-02 | NOx | 0.18 | |
| 40995-03 | ROG / VOC | 0.6 | |
| 40995-05 | SOx | 0.27 | |
| 40995-06 | CO | 3.4 | |
| 40996-01 | PM10 | 0.01 | |
| 40996-02 | NOx | 0.04 | |
| 40996-03 | CO | 0.02 | |
| 40996-04 | SOx | 0.35 | |
| 40997-01 | PM10 | 0.45 | |
| 40997-02 | NOx | 0.32 | |
| 40997-03 | ROG / VOC | 0.02 | |
| 40997-04 | CO | 0.06 | |
| 40997-05 | SOx | 0.04 | |
| 40997-06 | PM10 | 0.03 |
Source: ERC Banking Registry, Class A active ERCs, last update August 12, 2025; MERC Banking Registry, last update May 18, 2023 — San Diego County APCD, retrieved 2026-10-03.
It is already public record in the San Diego County register. Listing it on the Exchange is free, commits you to nothing, and puts it in front of the permit applicants and consultants searching this page. We verify the certificate against the register before anything goes live, and inquiries route straight to you or your broker.
List these credits for sale Ask the Exchange about this record
No NOx or ROG / VOC or PM10 or SOx or CO transaction is on record for San Diego County APCD in the 2022 or 2023 statewide reports or in the district transaction records the Exchange holds. For a reference point: 2023 NOx medians elsewhere in California ran from $2,500 (Imperial County) to $400,000 (South Coast); 2023 ROG / VOC medians elsewhere in California ran from $1,100 (Imperial County) to $174,845 (San Joaquin Valley); 2023 PM10 medians elsewhere in California ran from $485 (Imperial County) to $460,000 (South Coast); the only 2023 SOx trades recorded statewide were in Yolo-Solano, at a median of $17,000 per ton; the only 2023 CO trades recorded statewide were in Yolo-Solano, at a median of $3,400 per ton. Credits only work in the district that banked them, so local scarcity, not the statewide range, sets the price here. All recorded prices.
The buyer and holder agree a price privately. The transfer package — the holder's authorization, the purchase agreement, and the district's transfer forms — goes to San Diego County APCD, which verifies the banked reductions, records the transfer, and re-issues the certificate (or the remaining balance) in the buyer's name. Credits are generally usable only inside San Diego County APCD, or its air basin with district board approval under Health & Safety Code §40709.6. District office: (858) 586-2600. District ERC program page.
Need credits in San Diego County for a permit? Post what you need and the Exchange checks this and every other San Diego County record for you, no fee to inquire.