California Air District · ERC Guide

Mojave Desert AQMD Emission Reduction Credits

The district's public ERC registry — 39 banked certificates — mirrored and searchable on the Exchange. On the Exchange

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Banked ERC certificates of record — 39 across 25 holders

From the district's public registry (District-Wide ERC Summary dated September 15, 2026 (lbs/yr, also shown here as tons/yr)). Register edition retrieved 2026-10-03 (downloaded by hand; the district site refuses automated checks); every certificate is mirrored, with its own page. These are banked credits — the registry shows what exists, not what the holder has committed to sell. Open the interactive registry to search, view pollutant breakdowns, and send an inquiry.

Holder of recordCertificate(s)Source / pollutants banked
Southern California Gas Company0038, 0119, 0141NOx 1,881,979 · VOC 24,090 · PM10 7,302 · SOx 89 · CO 208,558 (lb/yr) ≈ NOx 941 · VOC 12.05 · PM10 3.65 · SOx 0.04 · CO 104 t/yr
SBC Investment LLC0153NOx 594,000 · VOC 2,958 · PM10 38,592 · SOx 420,000 · CO 338,000 (lb/yr) ≈ NOx 297 · VOC 1.48 · PM10 19.3 · SOx 210 · CO 169 t/yr
Cal Portland4 certificates (0144 … 0147)NOx 914,512 · VOC 1,766 · PM10 13,886 · SOx 1,927 · CO 5,849 (lb/yr) ≈ NOx 457 · VOC 0.88 · PM10 6.94 · SOx 0.96 · CO 2.92 t/yr
GenOn - California South, LP0154NOx 479,980 · SOx 2,792 · CO 151,480 (lb/yr) ≈ NOx 240 · SOx 1.4 · CO 75.74 t/yr
Southern California Logistics Airport Authority0066, 0073NOx 343,667 · VOC 6,175 · SOx 5,401 · CO 181,590 (lb/yr) ≈ NOx 172 · VOC 3.09 · SOx 2.7 · CO 90.8 t/yr
Blythe Energy, Inc0108, 0109NOx 400,000 · VOC 77,380 (lb/yr) ≈ NOx 200 · VOC 38.69 t/yr
Pacific Gas & Electric Company0129CO 442,767 (lb/yr) ≈ CO 221 t/yr
Searles Valley Minerals Operations, Inc.0082, 0118NOx 210,494 · VOC 1,743 · PM10 39,158 · SOx 4,373 · CO 25,760 (lb/yr) ≈ NOx 105 · VOC 0.87 · PM10 19.58 · SOx 2.19 · CO 12.88 t/yr
MCAGCC NREA0072NOx 5,210 · VOC 69 · PM10 149,536 · SOx 176 · CO 1,611 (lb/yr) ≈ NOx 2.61 · VOC 0.03 · PM10 74.77 · SOx 0.09 · CO 0.81 t/yr
Execu-Corp0061PM10 17,545 · CO 76,097 (lb/yr) ≈ PM10 8.77 · CO 38.05 t/yr
The Nutro Company0080PM10 88,179 (lb/yr) ≈ PM10 44.09 t/yr
Diversified Minerals Inc.0126PM10 80,000 (lb/yr) ≈ PM10 40 t/yr
GM&S0056SOx 53,992 (lb/yr) ≈ SOx 27 t/yr
Clark Pacific0156PM10 47,500 (lb/yr) ≈ PM10 23.75 t/yr
Value Environmental0142VOC 26,400 (lb/yr) ≈ VOC 13.2 t/yr
CEMEX, Inc.0125, 0149, 0152PM10 13,449 (lb/yr) ≈ PM10 6.72 t/yr
USMCLB4 certificates (0090 … 0148)NOx 3,124 · VOC 302 · PM10 5,443 · CO 2,456 (lb/yr) ≈ NOx 1.56 · VOC 0.15 · PM10 2.72 · CO 1.23 t/yr
Northwest Pipe Company0060PM10 8,000 (lb/yr) ≈ PM10 4 t/yr
World of Leisure0079VOC 6,492 (lb/yr) ≈ VOC 3.25 t/yr
MFG Companies0137VOC 5,429 (lb/yr) ≈ VOC 2.71 t/yr
High Desert Power LLC0140PM10 3,840 (lb/yr) ≈ PM10 1.92 t/yr
All American Pipeline0096, 0097CO 3,468 (lb/yr) ≈ CO 1.73 t/yr
Calnev Pipe Line, LLC - Barstow Terminal0114VOC 842 (lb/yr) ≈ VOC 0.42 t/yr
CalNev Pipeline LLC0076NOx 546 (lb/yr) ≈ NOx 0.27 t/yr
CEMEX Construction Materials Pacific, LLC0113NOx 2 · VOC 6 · PM10 5 · SOx 10 (lb/yr) ≈ NOx <0.01 · VOC <0.01 · PM10 <0.01 · SOx 0.01 t/yr

Recorded ERC transaction prices in Mojave Desert AQMD

2023: 7 transactions reported to CARB under Health & Safety Code §40709.5.

PollutantMedian $/tonLowHigh
HC (ROG/VOC)$35,000$35,000$35,000
PM10$9,000$1,000$9,000

Source: CARB ERC transaction report for 2023.

Statewide tables, 2022–2024, on the ERC prices page.

Every recorded sale in Mojave Desert AQMD, year by year

From the district's own transaction records — Mojave Desert AQMD — ERC Sales Data. Median price per ton as the district records it, the number of sales (n) and the low–high range. 47 transactions in all; 9 recorded without a price. Prices are shown as printed, including a few nominal ones ($1–$100 per ton) that sit at the low end of some ranges. Download every transaction (CSV).

YearNOxROG / VOCPM10SOx
2026——$10,600
n 3 · $9,660–$13,000
—
2025——$9,040
n 2 · $9,040–$9,040
—
2024—$222,500
n 2 · $45,000–$400,000
—$10,000
n 1
2023—$35,000
n 3 · $35,000–$35,000
$9,000
n 4 · $1,000–$9,000
—
2020—$25,000
n 1
——
2017——$9,000
n 1
—
2014$35,000
n 1
$25,320
n 2 · $25,320–$25,320
——
2013—$80
n 1
——
2010$10,000
n 1
———
2006—$6,300
n 1
——
2005——$5,200
n 2 · $5,200–$5,200
—
2004$10,500
n 1
$5,600
n 1
$5,000
n 1
—
2003$13,000
n 1
———
2001$10,870
n 4 · $9,260–$13,660
$5,650
n 2 · $5,000–$6,300
$5,000
n 1
—
2000——$580
n 1
—
1998—$24,000
n 1
——

Transferring ERCs in Mojave Desert AQMD

The district's own procedure, step by step, from its rules and forms (checked 2026-10-04). Every deal room on the Exchange follows these steps.

  1. Seller and buyer sign the transfer instrument (or a memorandum describing the transaction) - Rule 1402(D)(2)(a)(ii) (source)
  2. Owner files a request for transfer of ownership with the APCO including new-owner information, the signed instrument/memo, the purchase price by pollutant, and the existing ERC Certificate(s) - Rule 1402(D)(2)(a) (source)
  3. Pay the $116.00 transfer document fee - Rule 302(H)(1)(b) (source)
  4. APCO cancels the existing certificate(s), issues new certificate(s) to the new owner and records the transfer in the Registration List - Rule 1402(D)(2)(b) (source)
RuleMDAQMD Rule 1402, Section (D) (Transfer, Encumbrance, and Readjustment of Emission Reduction Credits), Regulation XIV (Adopted 06/28/95; Amended 05/19/97)
FormNo district transfer form published. Rule 1402(D)(2)(a): owner files a "request for transfer of ownership with the APCO" including new-owner registry information, "an executed copy of the instrument transferring the ERC or a memorandum describing the transaction which transfers the ERC which is signed by all parties to the transaction", the purchase price, and the existing ERC Certificate(s). (The district ERC page also states "The District does not have a formal ERC application" for issuance.)
FeeRule 302(H)(1)(b): "Any person submitting a document effecting an encumbrance of or transfer of ERCs pursuant to District Rule 1402 subsection (D)(2) - (4) shall pay a fee of $116.00 for each document submitted." (Rule 302 as amended 06/08/2026; Rule 1402 still cross-references the rescinded Rule 313, which the district's fee page says was rescinded 06/22/15 - see Rule 302.) (source)
Processing timeNot published by the district

Restrictions the district states: Rule 1402(D)(6): "Any transfer of an ERC shall not modify or otherwise alter the requirements contained in a permit or contract which render the ERC real, enforceable, permanent and quantifiable." (source) · Rule 1402(D)(7): conflicting interests in ERCs "rank in priority according to the time of filing with the District." (source) · Rule 1402(D)(4): an encumbrance recorded in the Registration List blocks use or subsequent transfer by the owner until a certified satisfaction/removal of the encumbrance is received. (source) · Rule 1402(E)(2): Class "B" ERCs "may not be used as offsets unless and until they have been reclassified as Class "A" ERCs" (reclassification fee $80.00, Rule 302(H)(1)(c)). (source) · Rule 1402(A)(3)(d): "ERC Certificates shall not constitute instruments, securities or any other form of property." (source) · Inter-district use: Rule 1305(C)(1)(b)-(c), (C)(4)-(5): ERCs issued by another district are usable as offsets only with APCO approval (in consultation with CARB, and USEPA for major sources), from an area of equal or greater nonattainment classification that contributes to the violation; out-of-basin transfers must comply with H&SC 40709.6. Rule 1305(D)(3): offsets from outside the District use the ratio that would apply had they been in the District. (source) · District ERC page: "The District does not have an ERC exchange or trading program"; "The value of a given ERC is determined by the buyer and seller (but the price paid must be reported to the District by Rule)." District publishes an ERC Registry and ERC Sales Data (prices by certificate) on its website. (source)

Mojave Desert AQMD: contacts, banking rule and fees

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 office14306 Park Ave, Victorville, CA 92392 (source)
760-245-1661 (source)
Permitting contactPermitting Division 760-245-1661, engineering@mdaqmd.ca.gov (source)
District pagesERC page · Rules · Permit forms
Banking ruleRule 1402, Emission Reduction Credit Registry
Part of Regulation XIV - Emission Reduction Credit Banking (Rules 1400-1406). Rule 1402 adopted 06/28/95, amended 05/19/97. ERC calculations under Rule 1404.
Banking applicationNo banking application form published
Banking feeRule 302(H)(1)(a): initial fee $542.00 per ERC issuance application, plus analysis fee for labor over 2 hours at the Rule 301(C)(2)(c)(i) hourly rate ($180.00/hr in Rule 301 effective 01/01/2026; $184.00/hr effective 01/01/2027), quarter-hour increments plus actual expenses. Transfer/encumbrance document $116.00; Class B to Class A reclassification $80.00. Rule 302 amended 06/08/2026. (source)
Timelines in the rule
  • Rule 1402(B)(1)(d)(ii): “an application for ERCs shall be submitted within six (6) months after any of the following”
  • Rule 1402(B)(2)(a): “The APCO shall determine if the application is complete no later than thirty (30) days after the receipt of the application”
  • Rule 1402(B)(4)(a): “Within thirty (30) days after the application for ERCs has been determined to be complete”
(source)
ERC registerThe district’s posted register (source)

Where the district’s own documents disagree: the ERC page and Rule 1402(B)(1)(c) both cite Rule 313 for the ERC fee, but no Rule 313 is posted in Regulation III; the ERC fee is in Rule 302 Section (H). · the Regulation III rule-book page labels two links 'Rule 302 Other Fees 06/08/26'; one (showpublisheddocument/8354) is actually the 08/24/20 version with a $425 ERC fee.

How ERCs work in Mojave Desert AQMD

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 Mojave Desert AQMD (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: (760) 245-1661. District ERC program page.

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Mojave Desert AQMD credits by pollutant

NOx credits in Mojave Desert AQMD · ROG / VOC credits in Mojave Desert AQMD · PM10 credits in Mojave Desert AQMD · SOx credits in Mojave Desert AQMD · CO credits in Mojave Desert AQMD

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