1. A. When used in COMAR 26.13.01—26.13.10, the following publications are incorporated by reference:

   1. (1) “ASTM Standard Test Methods of Flash Point of Liquids by Setaflash Closed Tester.” ASTM Standard D-3278-78 is available from American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.
   2. (2) “ASTM Standard Test Methods for Flash Point by Pensky-Martens Closed Tester,” ASTM Standard D-93-79 or D-93-80. D-93-80 is available from American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.
   3. (3) “NFPA 30 Flammable and Combustible Liquids Code” (1990), available from the National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts 02269.
   4. (4) “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods”, EPA SW-846, Third Edition (1986), as amended by Update I (July, 1992), Update II (September, 1994), Update IIA (August, 1993), and Update IIB (January, 1995). Refer to 40 CFR §260.11 for information on availability of these documents.

2. B. Incorporation of Federal Regulations by Reference.

   1. (1) As qualified by §B(2) of this regulation, certain federal regulations are incorporated by reference as follows:

      1. (a) When used in COMAR 26.13.05, 40 CFR §§144.3 and 264.140—264.151 as of July 1, 2024, are incorporated by reference;
      2. (b) When used in COMAR 26.13.06, the federal regulations as of July 1, 2024, in 40 CFR §§265.90—265.94, 265.140—265.148, 265.270—265.282, 265.340—265.351, 265.370—265.382, and 265.400—265.406 are incorporated by reference;
      3. (c) When used in COMAR 26.13.01—26.13.10, Appendix IX of 40 CFR Part 264, as amended (Ground Water Monitoring List is incorporated by reference;
      4. (d) When used in COMAR 26.13.03.07, the federal regulations as of July 1, 2024, in 40 CFR §§262.81—262.89 are incorporated by reference;
      5. (e) When used in COMAR 26.13.02, Appendix VIII of 40 CFR Part 261, as amended, and Appendix IX of 40 CFR Part 261, as amended, are incorporated by reference;
      6. (f) When used in COMAR 26.13.01—26.13.10, 49 CFR 171—180, 387, and 396, as amended, are incorporated by reference;
      7. (g) When used in COMAR 26.13.02.17D, the federal regulations as of July 1, 2024 in 40 CFR §261.32(d) are incorporated by reference;
      8. (h) When used in COMAR 26.13.02.19-7, the federal regulations as of July 1, 2024, in 40 CFR §261.39(a)(5) are incorporated by reference;
      9. (i) When used in COMAR 26.13.02.19-8 the federal regulations as of July 1, 2024, in 40 CFR §261.41 are incorporated by reference;
      10. (j) When used in COMAR 26.13.03.05F(4), the federal regulations as of July 1, 2024, in 40 CFR §314(e) are incorporated by reference;
      11. (k) When used in COMAR 26.13.03.07, the federal regulations as of July 1, 2024, in 40 CFR Part 262, Subpart H, are incorporated by reference;
      12. (l) When used in COMAR 26.13.05.02C(1), the federal regulations as of July 1, 2024, in 40 CFR §264.12(a) are incorporated by reference;
      13. (m) When used in COMAR 26.13.05.04G(4), 40 CFR Part 302, as amended, is incorporated by reference;
      14. (n) When used in COMAR 26.13.05.11, the federal regulations as of July 1, 2024, in 40 CFR §§264.221(c)(2)(i)—(iv) and .223(b)—(d) are incorporated by reference;
      15. (o) When used in COMAR 26.13.05.12, the federal regulations as of July 1, 2024, in 40 CFR §253(b) and (c) are incorporated by reference;
      16. (p) When used in COMAR 26.13.05.14, the federal regulations as of July 1, 2024, in 40 CFR §§264.301(c)(3)(i)—(v), .301(c)(5), .303(c), and .304(b) are incorporated by reference;
      17. (q) When used in COMAR 26.13.06.19, the federal regulations as of July 1, 2024, in 40 CFR §§265.222 and .223 are incorporated by reference;
      18. (r) When used in COMAR 26.13.06.20, the federal regulations as of July 1, 2024, in 40 CFR §§265.254, .255, and .259 are incorporated by reference;
      19. (s) When used in COMAR 26.13.06.22, the federal regulations as of July 1, 2024, in 40 CFR §§265.302 and .303 are incorporated by reference;
      20. (t) When used in COMAR 26.13.07.13-2A(13), the federal regulations as of July 1, 2024, in Appendix I of 40 CFR §270.42 are incorporated by reference; and
      21. (u) Except as qualified by COMAR 26.13.09.03, when used in used in COMAR 26.13.01—26.13.10, the federal regulations as of July 1, 2024, in 40 CFR Part 268 are incorporated by reference.
      22. (v) When used in COMAR 26.13.10.49C, the federal regulations as of July 1, 2024, in 40 CFR §§266.510(a), (b)(1), b(2), b(4), c(1)—(4), and c(7)—(10) are incorporated by reference.

   2. (2) References to Other Federal Regulations in Federal Regulations That Have Been Incorporated by Reference.

      1. (a) Unless otherwise noted in this subtitle, for the purposes of this subtitle a reference to a federal regulation within a federal regulation that has been incorporated by reference in §B(1) of this regulation shall be to the analogous provision within the Code of Maryland Regulations.

      2. (b) The following table lists federal regulations and the analogous provisions within the Code of Maryland Regulations:

         40 CFR Provision Referenced	State of Maryland Analog to the Referenced 40 CFR Provision
         §122.72(c). Note that, although there is a cross-reference to this citation in 40 CFR §265.276, it has been recodified. The current citation for this provision is 40 CFR §270.72(a)(3).	26.13.07.23C(1)(c)
         §124.5	26.13.07.20B
         §144.62(a)—(c)	No analog. Maryland prohibits underground injection.
         §144.70(f)	No analog. Maryland prohibits underground injection.
         Part 260	26.13.01
         §260.10	26.13.01.03
         §260.20	26.13.01.04A
         Part 261	26.13.02
         Part 261, Subpart C	26.13.02.10—.14
         Part 261, Subpart D	26.13.02.15—.19-5
         §261.2	26.13.02.02
         §261.3	26.13.02.03
         §261.3(c) and (d)	26.13.02.03C and D
         §261.3(f)	26.13.02.03E
         §261.3(f)(1)	26.13.02.03E(1)
         §261.3(f)(2)	26.13.02.03E(2)
         §261.4(a)(2)	26.13.02.04A(2)
         §261.21	26.13.02.11
         §261.21(a)(1)	26.13.02.11A(1)
         §261.21(a)(2)	26.13.02.11A(2)
         §261.21(a)(3)	26.13.02.11A(3)
         §261.21(a)(4)	26.13.02.11A(4)
         §261.22	26.13.02.12
         §261.22(a)(1)	26.13.02.12A(1)
         §261.22(a)(2)	26.13.02.12A(2)
         §261.23	26.13.02.13
         §261.23(a)(4) and (5)	26.13.02.13A(4) and (5)
         §261.23(a)(1)—(8)	26.13.02.13A(1)—(8)
         §261.24	26.13.02.14
         §261.31	26.13.02.16
         §261.32	26.13.02.17
         §261.33	26.13.02.19
         Part 261, Appendix VIII	26.13.02.24
         Part 262	26.13.03
         Part 262, Subpart B	26.13.03.04
         Part 262, Subpart F	26.13.03.07-3
         Part 262, Subpart M	26.13.03.03-5C and D
         §262.17(a)(7)	26.13.03.03-5B
         §262.17(a)(7)(iv)	26.13.03.03-5B(1)(a)
         262.11	26.13.03.02, .02-1, and .02-2
         262.15	26.13.03.03-3
         262.16	26.13.03.03-4-.03-10, .05E, .05-1, and .05-2
         262.17	26.13.03.03-4-.03-11, .05E, .05-1, and .05-2
         262.20(e)	Not applicable. No corresponding provision in COMAR 26.13.
         §262.23(a)	26.13.03.04E(1)
         §262.23(c) and (d)	26.13.03.04E(4) and (5)
         §262.41	26.13.03.06B
         §262.42	26.13.03.06C
         §262.51	26.13.01.03B
         §262.54(a)—(d) and (i)	26.13.03.07-2A(1)—(4) and (10)
         §262.58	26.13.03.07-5A—D
         §262.58(a)(1) and (2)	26.13.03.07-5C(1) and (2)
         §262.80(a)	26.13.03.07-5A
         Part 263	26.13.04
         Part 264	26.13.05
         Part 264, Subpart F	26.13.05.06-.06-7
         Part 264, Subpart O	26.13.05.16
         §264.1	26.13.05.01A
         §264.13	26.13.05.02D
         §264.17(b)	26.13.05.02H(2)
         §265.72	26.13.06.05A
         §264.73	26.13.05.05D
         §264.111	26.13.05.07B
         §264.112	26.13.05.07C
         §264.112(b)	26.13.05.07C(2)
         §264.113	26.13.05.07D
         §264.113(d)	26.13.05.07D(6)
         §264.114	26.13.05.07E
         §264.115	26.13.05.07F
         §264.117	26.13.05.07G
         §264.118	26.13.05.07H
         §264.119	26.13.05.07I
         §264.120	26.13.05.07J
         §§264.140—264.151 (Part 264, Subpart H)	26.13.05.08
         §264.178	26.13.05.09I
         §264.197	26.13.05.10-7
         §264.221(a)	26.13.05.11D(10)
         §264.221(c)	26.13.05.11D(4)
         §264.221(d)	26.13.05.11B(6)
         §264.221(e)	26.13.05.11D(6)
         §264.228	26.13.05.11G
         §264.258	26.13.05.12I
         §264.280	26.13.05.13K
         §264.301(c)	26.13.05.14B(3)
         §264.301(d)	26.13.05.14B(4)
         §264.301(e)	26.13.05.14B(5)
         §264.310	26.13.05.14J
         §264.316	26.13.05.14N
         §264.351	26.13.05.16E
         §264.554	Not applicable. No corresponding provision in COMAR 26.13.
         §§264.601—264.603 (Part 264, Subpart X)	26.13.05.16-1
         Part 265	26.13.06
         Part 265, Subpart F	26.13.06.06
         Part 265, Subpart G	26.13.06.12
         Part 265, Subpart H	26.13.06.16
         Part 265, Subpart J	26.13.06.18
         Part 265, Subpart K	26.13.06.19
         Part 265, Subpart M	26.13.06.21
         Part 265, Subpart O	26.13.06.23
         Part 265, Subpart P	26.13.06.24
         Part 265, Subpart Q	26.13.06.25
         §265.1	26.13.06.01A
         §265.13	26.13.06.02A—C and 26.13.05.02D
         §265.15(c)	26.13.06.02A, D, E and 26.13.05.02F
         §265.17(b)	26.13.06.02A and 26.13.05.02H(2)
         §265.21	26.13.02.11
         §265.72	26.13.06.05A
         §265.73	26.13.06.05A, B(1)—(4), C and 26.13.05.05D
         §§265.90—265.94 (Part 265, Subpart F)	26.13.06.06
         §265.111	26.13.06.07B
         §265.112	26.13.06.08
         §265.112(b)	26.13.06.08B—C
         §265.113	26.13.06.09
         §265.113(d)	26.13.06.09H
         §265.114	26.13.06.10
         §265.115	26.13.06.11
         §265.117	26.13.06.12C
         §265.118	26.13.06.13
         §265.119	26.13.06.14
         §265.120	26.13.06.15
         §§265.140—265.148 (Part 265, Subpart H)	26.13.06.16
         §265.178	Maryland has not adopted regulations governing organic air emissions from containers. Use 40 CFR §265.178.
         §265.197	26.13.06.18D
         §265.221(a)	26.13.06.19D(1)
         §265.221(d)	26.13.06.19D
         §265.221(e)	Not applicable. No corresponding provision in COMAR 26.13.
         §265.228	26.13.06.19B(4) and 26.13.05.11G(1)—(2)
         §265.258	26.13.06.20B(6) and 26.13.05.12I(1)—(2)
         §§265.270—265.282 (Part 265, Subpart M)	26.13.06.21
         §265.301(a)	26.13.06.22C
         §265.301(c)	26.13.06.22C
         §265.301(d)	26.13.06.22C
         §265.301(e)	26.13.06.22E
         §265.310	26.13.06.22B(3) and 26.13.05.14J
         §265.316	26.13.06.21F
         §§265.340—265.351 (Part 265, Subpart O)	26.13.06.23
         §§265.370—265.382 (Part 265, Subpart P)	26.13.06.24
         §§265.400—265.406 (Part 265, Subpart Q)	26.13.06.25
         Part 265, Appendix III	No analog. Use 40 CFR Part 265, Appendix III.
         Part 265, Appendix V	No analog. Use 40 CFR Part 265, Appendix V.
         Part 266	26.13.10
         §266.20	26.13.10.01
         §266.20(b)	26.13.10.01A(3)
         §266.500	26.13.01.03B
         §266.502	26.13.10.37 – .45
         §266.503	26.13.10.46
         §266.508(a)	26.13.10.47A – E
         §266.508(b)	26.13.10.47F
         §266.509	26.13.10.48
         §266.510	26.13.10.49
         §266.510(a)	26.13.10.49C(1)(a)
         §266.510(c)	26.13.10.49C(1)(c)
         §266.510(c)(5)	26.13.10.47 and 26.13.10.49D(2)
         §266.510(c)(6)	26.13.10.49D
         Part 268	26.13.09
         §270.14	26.13.07.02D(15)—(19) and (20)—(38), and 26.13.07.02-1—.02-11
         §270.19	26.13.07.02-6
         §270.41(a)(5)	26.13.07.11B(4)
         §270.62	26.13.07.17
         §273.2	26.13.10.07

3. C. When used in COMAR 26.13.01—26.13.10, the following federal statutory provisions are incorporated by reference:

   1. (1) The minimum technological requirements of:

      1. (a) §3004(o)(1) of RCRA,
      2. (b) §3004(o)(2) and (3) of RCRA, except that “the Administrator” shall be replaced by “the Administrator or the Secretary”;

   2. (2) The requirements concerning interim status surface impoundments in:

      1. (a) §3005(j)(1)—(4) of RCRA, and
      2. (b) §3005(j)(13) of RCRA, except that the phrase “The Administrator may modify the requirements of paragraph (1)” shall be replaced by the phrase “The Administrator or the Secretary may modify the requirements of paragraph (1)”;
   3. (3) The notification requirements of §3010 of RCRA; and
   4. (4) The requirements concerning exposure information in §3019 of RCRA.

Authority: Environment Article, §6-905.3 and Title 7, Subtitle 2, Annotated Code of Maryland

Effective date:

Regulations .01—.04 adopted as an emergency provision effective November 18, 1980 (7:25 Md. R. S-1); adopted permanently effective April 3, 1981 (8:7 Md. R. 642)

Regulations .02A and .03B amended effective January 18, 1982 (9:1 Md. R. 20)

Regulation .02A-1 adopted effective February 13, 1984 (11:3 Md. R. 202)

Regulation .02D adopted effective January 18, 1982 (9:1 Md. R. 20)

Regulation .03B amended effective January 31, 1983 (10:2 Md. R. 110); February 13, 1984 (11:3 Md. R. 202); July 30, 1984 (11:15 Md. R. 1330); April 18, 1988 (15:8 Md. R. 1009)

Regulation .04C amended, D—I adopted effective April 18, 1988 (15:8 Md. R. 1009)

Regulation .05 adopted effective January 31, 1983 (10:2 Md. R. 110)

Regulation .05A amended effective April 18, 1988 (15:8 Md. R. 1009)

Chapter recodified from COMAR 10.51.01 to COMAR 26.13.01

Regulation .01B amended effective October 16, 2000 (27:20 Md. R. 1843)

Regulation .02A amended effective January 13, 2022 (49:1 Md. R. 14)

Regulation .02F adopted effective January 13, 2022 (49:1 Md. R. 14)

Regulation .03B amended effective April 1, 1991 (18:6 Md. R. 690); December 23, 1991 (18:25 Md. R. 2759); May 24, 1993 (20:10 Md. R. 853); April 11, 1994 (21:7 Md. R. 533); August 28, 1995 (22:17 Md. R. 1321); September 10, 1997 (24:5 Md. R. 413); September 7, 1998 (25:18 Md. R. 1438); October 16, 2000 (27:20 Md. R. 1843); November 1, 2002 (29:21 Md. R. 1647); September 11, 2006 (33:18 Md. R. 1507); May 1, 2008 (35:8 Md. R. 809); January 18, 2016 (43:1 Md. R. 14); May 3, 2021 (48:9 Md. R. 359); January 13, 2022 (49:1 Md. R. 14); October 1, 2025 (52:17 Md. R. 876)

Regulation .03-1 adopted effective January 13, 2022 (49:1 Md. R. 14)

Regulation .04 amended effective October 16, 2000 (27:20 Md. R. 1843); November 1, 2002 (29:21 Md. R. 1647); January 13, 2022 (49:1 Md. R. 14)

Regulation .04F amended effective May 24, 1993 (20:10 Md. R. 853)

Regulation .04I amended effective December 23, 1991 (18:25 Md. R. 2759); October 16, 2000 (27:20 Md. R. 1843)

Regulation .04L amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .05A amended effective December 23, 1991 (18:25 Md. R. 2759); May 24, 1993 (20:10 Md. R. 853); September 10, 1997 (24:5 Md. R. 413); October 16, 2000 (27:20 Md. R. 1843)

Regulation .05B amended effective October 16, 2000 (27:20 Md. R. 1843); November 1, 2002 (29:21 Md. R. 1647); May 1, 2008 (35:8 Md. R. 809); January 18, 2016 (43:1 Md. R. 14); May 3, 2021 (48:9 Md. R. 359); January 13, 2022 (49:1 Md. R. 14); October 1, 2025 (52:17 Md. R. 876)

Regulation .05C adopted effective October 16, 2000 (27:20 Md. R. 1843)