---
kind: "section"
citation: "40 C.F.R. § 63.11465"
title: "40"
number: "63.11465"
heading: "What are the standards for new and existing sources?"
url: "https://uscodex.org/cfr/40/63.11465"
---

# §63.11465. What are the standards for new and existing sources?

- (a) You must route the emissions from each existing affected source through a fabric filter or baghouse that achieves a particulate matter (PM) control efficiency of at least 99.0 percent or an outlet PM concentration limit of 0.034 grams per dry standard cubic meter (g/dscm)(0.015 grains per dry standard cubic feet (gr/dscf)).
- (b) You must route the emissions from each new affected source through a fabric filter or baghouse that achieves a PM control efficiency of at least 99.5 percent or an outlet PM concentration limit of 0.023 g/dscm (0.010 gr/dscf).

## Notes

### Source

Source: 72 FR 73207, Dec. 26, 2007, unless otherwise noted.

### Authority

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

### Source

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