---
kind: "section"
citation: "40 C.F.R. § 63.5875"
title: "40"
number: "63.5875"
heading: "How do I determine the capture efficiency of the enclosure on my wet-out area and the capture efficiency of my oven(s) for continuous lamination/casting operations?"
url: "https://uscodex.org/cfr/40/63.5875"
---

# §63.5875. How do I determine the capture efficiency of the enclosure on my wet-out area and the capture efficiency of my oven(s) for continuous lamination/casting operations?

- (a) The capture efficiency of a wet-out area enclosure is assumed to be 100 percent if it meets the design and operation requirements for a permanent total enclosure (PTE) specified in EPA Method 204 of appendix M to [40 CFR part 51](/cfr/40/part51.md). If a PTE does not exist, then a temporary total enclosure must be constructed and verified using EPA Method 204, and capture efficiency testing must be determined using EPA Methods 204B through E of appendix M to [40 CFR part 51](/cfr/40/part51.md).
- (b) The capture efficiency of an oven is to be considered 100 percent, provided the oven is operated under negative pressure.

## Notes

### Source

Source: 68 FR 19402, Apr. 21, 2003, unless otherwise noted.

### Authority

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

### Source

Source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.