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e-CFR data is current as of January 13, 2021

Title 40Chapter ISubchapter CPart 60Subpart BBBB → Appendix

Title 40: Protection of Environment
Subpart BBBB—Emission Guidelines and Compliance Times for Small Municipal Waste Combustion Units Constructed on or Before August 30, 1999

Table 3 to Subpart BBBB of Part 60—Model Rule—Class I Nitrogen Oxides Emission Limits for Existing Small Municipal Waste Combustion Unitsa b c

Municipal waste combustion technology Limits for class I municipal waste combustion units
1. Mass burn waterwall200 parts per million by dry volume.
2. Mass burn rotary waterwall170 parts per million by dry volume.
3. Refuse-derived fuel250 parts per million by dry volume.
4. Fluidized bed220 parts per million by dry volume.
5. Mass burn refractory350 parts per million by dry volume.
6. Modular excess air190 parts per million by dry volume.
7. Modular starved air380 parts per million by dry volume.

aClass I units mean small municipal waste combustion units subject to this subpart that are located at municipal waste combustion plants with an aggregate plant combustion capacity greater than 250 tons per day of municipal solid waste. See §60.1940 for definitions.

bNitrogen oxides limits are measured at 7 percent oxygen.

cAll limits are 24-hour daily block arithmetic average concentration. Compliance is determined for Class I units by continuous emission monitoring systems.

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