EPA-Approved Modoc County Air District Regulations in the California SIP

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

The following document contains the EPA approved rules and regulations for the Modoc County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes in the official tables codified in the Code of Federal Regulations. To find the status of SIP submittals, visit SIP Status Reports.

On this page:

Compiled Rules and Regulations (PDF)
Tables of Rules and Regulations
- Original Codification of Air Pollution Rules and Regulations
- January 1989 Recodification of Air Pollution Rules and Regulations

Compiled Rules and Regulations

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EPA Approved and Compiled Rules and Regulations: Modoc County APCD (pdf) (3.17 MB, September 2022)
EPA approved and compiled rules and regulations of the Modoc County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).

Tables of Rules and Regulations

Original Codification of Air Pollution Rules and Regulations

Regulation I – General Provisions

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
1:1	Title	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
1:3	Air Pollution Data	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
1:6	General Provisions	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).

Regulation II – Permits

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
2:0	Permits Required	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
2:1	Sources Not Requiring Permits	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
2:8 (excluding paragraph (a.))	Standards for Granting Applications	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6). Paragraph (a.) was superseded by approval of Rule 2:8-e at 47 FR 26379 (June 18, 1982).
2:8-e	Standards for Permits to Construct	June 18, 1979	June 18, 1982, 47 FR 26379	Submitted on December 17, 1979. See 40 CFR 52.220(c)(58)(ix)(A).
2:11	List and Criteria	August 21, 1978	January 27, 1981, 46 FR 8471	Submitted on May 7, 1979. See 40 CFR 52.220(c)(50)(vii)(A).

Regulation III – Prohibitions

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
3:3	Particulate Matter	August 21, 1978	January 27, 1981, 46 FR 8471	Submitted on May 7, 1979. See 40 CFR 52.220(c)(50)(vii)(A).
3:4	Specific Air Contaminants	August 21, 1978	January 27, 1981, 46 FR 8471	Submitted on May 7, 1979. See 40 CFR 52.220(c)(50)(vii)(A).
3:4A	Reduction of Odorous Matter	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:7	Open Burning	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:8	Exceptions	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:9	Other Violations Not Permitted	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:10	Sulfur Contents of Fuels	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:10A	Ambient Air Quality Standards	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
3:12	Solid Particulate Matter - Weight	August 21, 1978	April 13, 1982, 47 FR 15784	Submitted on October 10, 1980. See 40 CFR 52.220(c)(84)(vii)(A).
3:14	Combination of Emissions	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).
3:16	Gasoline Storage	April 17, 1972	September 22, 1972, 37 FR 19812	Submitted on June 30, 1972. See 40 CFR 52.220(c)(6).

Regulation V – Agricultural Burning

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
5:1	Enforcement	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
5:2	Burning Permits	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
5:4	Notification of Burning Conditions	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
5:5	Exceptions	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
5:6	Enforcement	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A).
5:7	Prohibitions	December 18, 1972	February 10, 1977, 42 FR 8376; corrected on August 22, 1977, 42 FR 42219	Submitted on July 25, 1973. See 40 CFR 52.220(c)(21)(ii)(A). Includes general prohibitions as well as specific provisions related to range improvement burning and forest management burning.

January 1989 Recodification of Air Pollution Rules and Regulations

January 1989 Recodification of Air Pollution Rules and Regulations: Regulation I – General Provisions

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
1.2	Definitions	May 1, 1989	June 30, 1999, 64 FR 35005	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(3).

Regulation II – Permit System

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
2.3	Transfers	January 15, 1989	August 1, 2016, 81 FR 50362	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(5).
2.5	Expiration of Applications	January 15, 1989	August 1, 2016, 81 FR 50362	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(6).
2.7	Conditional Approval	January 15, 1989	August 1, 2016, 81 FR 50362	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(7).
2.10	Further Information	January 15, 1989	August 1, 2016, 81 FR 50362	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(8).

January 1989 Recodification of Air Pollution Rules and Regulations: Regulation IV – Prohibitions

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
4.1	Visible Emissions	January 15, 1989	July 17, 2001, 66 FR 37151	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(4).
4.1-2	Uncombined Water	January 3, 1989	June 3, 1999, 64 FR 29790	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(1).
4.6	Circumvention	January 3, 1989	June 3, 1999, 64 FR 29790	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(1).
4.6-1	Exception to Circumvention	January 3, 1989	June 3, 1999, 64 FR 29790	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(1).
4.9	Separation of Emissions	January 3, 1989	June 3, 1999, 64 FR 29790	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(1).
4.11	Orchard and Citrus Heaters	January 3, 1989	May 18, 1999, 64 FR 26876	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(2).

Regulation VII – Agricultural Burning

District Citation	Title/Subject	State Effective Date	EPA Approval Date	Additional Explanation
7.1	Definitions	May 1, 1989	June 30, 1999, 64 FR 35005	Submitted on December 31, 1990. See 40 CFR 52.220(c)(182)(i)(F)(3).