---
kind: "section"
citation: "40 C.F.R. § 60.3066"
title: "40"
number: "60.3066"
heading: "What are the emission limitations for air curtain incinerators that burn only wood waste, clean lumber, and yard waste?"
url: "https://uscodex.org/cfr/40/60.3066"
---

# §60.3066. What are the emission limitations for air curtain incinerators that burn only wood waste, clean lumber, and yard waste?

- (a) Within 180 days after your final compliance date in table 1 of this subpart, you must meet the two limitations specified in paragraphs [(a)(1)](#a-1) and [(2)](#a-2) of this section.
  - (1) The opacity limitation is 10 percent (6-minute average), except as described in [paragraph (a)(2)](#a-2) of this section.
  - (2) The opacity limitation is 35 percent (6-minute average) during the startup period that is within the first 30 minutes of operation.
- (b) **The limitations in paragraph (a) of this section apply at all times.**

## Notes

### Amendments

[70 FR 74907, Dec. 16, 2005, as amended at 90 FR 27966, June 30, 2025]

### Source

Source: 70 FR 74907, Dec. 16, 2005, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.

### Amendments

[70 FR 74907, Dec. 16, 2005, as amended at 90 FR 27966, June 30, 2025]