40 C.F.R. § 60.6670
How must I monitor opacity for air curtain incinerators that burn 100 percent wood waste, clean lumber, and/or yard waste?
Cite as 40 C.F.R. § 60.6670 (2026)
(a) Use the procedures specified in Table 5 to Subpart WWWW to determine compliance with the opacity limit for air curtain incinerators under § 60.6665. (b) Conduct an initial test for opacity as specified in § 60.8 of subpart A of this part. (c) After the initial test for opacity, conduct annual tests (no less than 9 calendar months and no more than 15 calendar months following the previous test). You must complete five performance tests in each 5-year calendar period.
- Cross-references to the CFR
- 60.6665.60.8