Md. Code Regs. 26.13.03.01-1 – Federally-defined Hazardous Waste Generator Categories — Applicability in Maryland.

A. Federal hazardous waste regulations in 40 CFR Parts 260—270 define and use the terms “very small quantity generator”, “small quantity generator”, and “large quantity generator”. This regulation:
1. (1) Restates the definitions of the federally-defined hazardous waste generator categories;
2. (2) Identifies certain requirements for which the applicability of the requirements to a Maryland generator of hazardous waste depends on the generator’s federally-defined hazardous waste generator category; and
3. (3) Identifies certain reduced requirements that a Maryland generator of hazardous waste may take advantage of if the generator meets the federal definition of a small quantity generator.
B. Federal Categories for Hazardous Waste Generators. Under federal regulations at 40 CFR §260.10, a:
1. (1) “Very small quantity generator” is a generator who generates less than or equal to the following amounts in a calendar month:
  1. (a) 100 kilograms (220 lbs) of nonacute hazardous waste;
  2. (b) 1 kilogram (2.2 lbs) of acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e); and
  3. (c) 100 kilograms (220 lbs) of any residue or contaminated soil, water, or other debris resulting from the cleanup of a spill, into or on any land or water, of any acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e);
2. (2) “Small quantity generator” is a generator who generates that following amounts in a calendar month:
  1. (a) Greater than 100 kilograms (220 pounds) but less than 1,000 kilograms (2,200 pounds) of non-acute hazardous waste;
  2. (b) Less than or equal to 1 kilogram (2.2 pounds) of acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e); and
  3. (c) Less than or equal to 100 kilograms (220 pounds) of any residue or contaminated soil, water, or other debris resulting from the cleanup of a spill, into or on any land or water, of any acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e);
3. (3) “Large quantity generator” is a generator who generates any of the following amounts in a calendar month:
  1. (a) Greater than or equal to 1,000 kilograms (2200 pounds) of non-acute hazardous waste;
  2. (b) Greater than 1 kilogram (2.2 pounds) of acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e) of this chapter; or
  3. (c) Greater than 100 kilograms (220 pounds) of any residue or contaminated soil, water, or other debris resulting from the cleanup of a spill, into or on any land or water, of any acute hazardous waste listed in 40 CFR §261.31 or 40 CFR §261.33(e).
B-1. Federal Generator Categories — Healthcare Facilities that Generate Hazardous Waste Pharmaceuticals. To determine the applicable federally-defined hazardous waste generator category, a healthcare facility as defined in COMAR 26.13.01.03B shall refer to COMAR 26.13.10.32F.
C. A Maryland generator of hazardous waste shall:
1. (1) Determine the applicable generator category under federal regulations using the procedures in 40 CFR §262.13, except that the generator shall:
  1. (a) Use the provisions of COMAR 26.13.02.05A(2) instead of the provisions of 40 CFR §262.13(c) in identifying waste that should not be counted in determining the federal generator category;
  2. (b) Exclude from the quantity of waste that determines the generator’s federal generator category any hazardous waste that is regulated as a hazardous waste under Maryland regulations but not federal regulations; and
  3. (c) Use the provisions of COMAR 26.13.02.05A(3)instead of the provisions of 40 CFR §262.13(d) in identifying the quantity of hazardous waste generated in a calendar month.
2. (2) Use the federal generator category determined under §C(1) of this regulation for the purposes of:
  1. (a) Completing forms associated with:
    1. (i) Obtaining an EPA identification number under Regulation .03 of this chapter;
    2. (ii) Satisfying the renotification requirement of Regulation .03-1 of this chapter; and
    3. (iii) Reactivating an EPA identification number under Regulation .03-2 of this chapter;
  2. (b) Completing forms associated with the biennial report of hazardous waste activity required by Regulation .06B of this chapter; and
  3. (c) Determining eligibility for exemptions from certain requirements that are available to persons who qualify as a small quantity generator under federal regulations, as specified in §D of this regulation.
D. Exemptions from Certain Requirements Based on a Generator’s Federal Generator Category. A generator who qualifies as a small quantity generator under federal regulations, and who does not accept hazardous waste from off site for consolidation under the provisions of Regulation .03-11 of this chapter, is not required to comply with:
1. (1) The requirement of Regulation .03-5D(1) of this chapter and COMAR 26.13.05.04D(2) regarding submission of copies of the contingency plan;
2. (2) The requirement of Regulation .03-5E of this chapter to prepare and distribute a quick reference guide to the facility contingency plan;
3. (3) The requirement of Regulation .03-6G(1) of this chapter that containers holding ignitable or reactive waste are to be located at least 15 meters (50 feet) from the facility property line;
4. (4) The requirements of Regulations .03-6J and .03-7B(1)(d) of this chapter to comply with air emissions standards in 40 CFR Part 265 Subparts AA, BB, and CC; and
5. (5) The closure notification requirements of regulation .05-2B of this chapter.

Authority: Environment Article, Title 7, Subtitle 2, Annotated Code of Maryland

Effective date:

Regulations .01—.07 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 .01; .04A, D; .05D, E; .07B amended effective January 18, 1982 (9:1 Md. R. 20)

Regulations .01B; .02B; .04A, B, D; .05E; .06A—C; and .07A amended, and .01G and .04E adopted effective July 30, 1984 (11:15 Md. R. 1330)

Regulations .01E and .05E amended effective February 13, 1984 (11:3 Md. R. 202)

Regulations .01F, .04D, .06C, and .07A amended effective January 31, 1983 (10:2 Md. R. 110)

Regulation .05E amended effective August 12, 1985 (12:16 Md. R. 1607)

Chapter recodified from COMAR 10.51.03 to COMAR 26.13.03

Regulation .01B, D amended effective August 28, 1995 (22:17 Md. R. 1321)

Regulation .01G amended effective December 23, 1991 (18:25 Md. R. 2759)

Regulation .01H and I adopted effective April 18, 1988 (15:8 Md. R. 1009)

Regulation .02A amended effective December 23, 1991 (18:25 Md. R. 2759)

Regulation .04 amended effective April 18, 1988 (15:8 Md. R. 1009); September 11, 2006 (33:18 Md. R. 1507)

Regulation .04A, C amended effective December 23, 1991 (18:25 Md. R. 2759)

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

Regulation .05 amended effective September 11, 2006 (33:18 Md. R. 1507)

Regulation .05C amended effective December 23, 1991 (18:25 Md. R. 2759)

Regulation .05E amended effective April 18, 1988 (15:8 Md. R. 1009); May 24, 1993 (20:10 Md. R. 853); September 10, 1997 (24:5 Md. R. 413)

Regulation .06A amended effective May 5, 1997 (24:9 Md. R. 659)

Regulation .06B amended effective April 18, 1988 (15:8 Md. R. 1009); December 23, 1991 (18:25 Md. R. 2759); August 28, 1995 (22:17 Md. R. 1321); May 5, 1997 (24:9 Md. R. 659)

Regulation .06C amended effective September 11, 2006 (33:18 Md. R. 1507)

Regulation .07A amended effective April 18, 1988 (15:8 Md. R. 1009)

Regulation .07 repealed and new Regulations .07 and .07-1—.07-4 adopted effective August 28, 1995 (22:17 Md. R. 1321)

Regulation .08 repealed effective May 5, 1997 (24:9 Md. R. 659)

Chapter revised effective October 16, 2000 (27:20 Md. R. 1843)

Regulation .01B-1 adopted effective November 1, 2002 (29:21 Md. R. 1647)

Regulation .01G amended effective May 1, 2008 (35:8 Md. R. 809)

Regulation .01J adopted effective May 1, 2008 (35:8 Md. R. 809)

Regulation .02 amended effective November 1, 2002 (29:21 Md. R. 1647)

Regulation .04 amended effective September 11, 2006 (33:18 Md. R. 1507)

Regulation .04A amended effective May 1, 2008 (35:8 Md. R. 809)

Regulation .05E amended effective May 1, 2008 (35:8 Md. R. 809)

Regulation .07 amended effective November 1, 2002 (29:21 Md. R. 1647)

Regulation .07A amended effective May 1, 2008 (35:8 Md. R. 809)

Regulation .07-1 amended effective November 1, 2002 (29:21 Md. R. 1647)

Regulation .07-2A amended effective September 11, 2006 (33:18 Md. R. 1507)

Regulation .07-2C amended effective November 1, 2002 (29:21 Md. R. 1647)

Regulation .07-3 amended effective September 11, 2006 (33:18 Md. R. 1507)

Regulation .07-5 adopted effective November 1, 2002 (29:21 Md. R. 1647)

Chapter revised effective May 3, 2021 (48:9 Md. R. 359)

Regulation .01A-2 amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .01D amended effective January 13, 2022 (49:1 Md. R. 14)

Regulation .01G amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .01K, L adopted effective October 1, 2025 (52:17 Md. R. 876)

Regulation .01-1B-1 adopted effective October 1, 2025 (52:17 Md. R. 876)

Regulation .02C amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .03-3E amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .03-4C amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .03-5C amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .03-7B amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .04 amended effective January 13, 2022 (49:1 Md. R. 14)

Regulation .05F adopted effective October 1, 2025 (52:17 Md. R. 876)

Regulation .05-4C amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .06B amended effective October 1, 2025 (52:17 Md. R. 876)

Regulation .06C amended effective January 13, 2022 (49:1 Md. R. 14)

Regulation .07 repealed and new Regulation .07 adopted effective January 13, 2022 (49:1 Md. R. 14)

Regulations .07-1—.07-3 repealed effective January 13, 2022 (49:1 Md. R. 14)

Regulation .07-4 amended effective January 13, 2022 (49:1 Md. R. 14)

Regulations .07-5 repealed effective January 13, 2022 (49:1 Md. R. 14)