---
kind: "section"
citation: "40 C.F.R. § 63.11645"
title: "40"
number: "63.11645"
heading: "What are my mercury emission standards?"
url: "https://uscodex.org/cfr/40/63.11645"
---

# §63.11645. What are my mercury emission standards?

- (a) For existing ore pretreatment processes, you must emit no more than 127 pounds of mercury per million tons of ore processed.
- (b) For existing carbon processes with mercury retorts, you must emit no more than 2.2 pounds of mercury per ton of concentrate processed.
- (c) For existing carbon processes without mercury retorts, you must emit no more than 0.17 pounds of mercury per ton of concentrate processed.
- (d) For existing non-carbon concentrate processes, you must emit no more than 0.2 pounds of mercury per ton of concentrate processed.
- (e) For new ore pretreatment processes, you must emit no more than 84 pounds of mercury per million tons of ore processed.
- (f) For new carbon processes with mercury retorts, you must emit no more than 0.8 pounds of mercury per ton of concentrate processed.
- (g) For new carbon processes without mercury retorts, you must emit no more than 0.14 pounds of mercury per ton of concentrate processed.
- (h) For new non-carbon concentrate processes, you must emit no more than 0.1 pounds of mercury per ton of concentrate processed.
- (i) **The standards set forth in this section apply at all times.**

## Notes

### Source

Source: 76 FR 9480, Feb. 17, 2011, unless otherwise noted.

### Authority

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

### Source

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