Small Municipal Waste Combustion Units - Subpart AAAA

eCFR Subpart AAAA [ecfr.gov]

This subpart applies to:

1. Small municipal waste combustion (MWC) units that commence construction after Aug 30, 1999.
2. Small MWC units that commence modification or reconstruction after June 6, 2001.

A small MWC unit has the capacity to combust at least 35 tons per day but no more than 250 tons per day of municipal solid waste or refuse-derived fuel.

Physical or operational changes made to an existing MWC unit primarily to comply with NSPS BBBB do not qualify as modifications or reconstruction.


Not subject to this subpart*:

1. Small MWC units that combust less than 11 tons/day;
2. Qualifying small power production facilities (per Section 3(17)(C) of the Federal Power Act, 16 USC 796(17)(C));
3. Qualifying cogeneration facilities (per Section 3(18)(B) of the Federal Power Act, 16 USC 796(18)(B));
4. MWC units that combust only tires;
5. Hazardous waste combustion units with a permit under Section 3005 of the Solid Waste Disposal Act;
6. Materials recovery units;
7. Co-fired combustors;
8. Plastics/rubber recycling units;
9. Units that combust fuels made from products of plastics/rubber recycling plants;
10. Cement kilns

Partially Exempt*:

1. Air curtain incinerators that combust 100% yard waste.

*These facilities must still comply with certain requirements (per 40 CFR 60.1020). Please see the rule text for full details.

NSPS - 40 CFR Part 60

Subpart BBBB - Existing Small Municipal Waste Combustors
Subpart E - Incinerators
Subparts Cb, Ea, & Eb - Other Municipal Waste Combustors

 

NESHAP - 40 CFR Part 63

Subpart EEE - Hazardous Waste Combustors

eCFR Subpart AAAA [ecfr.gov]