---
kind: "section"
citation: "40 C.F.R. § 63.1351"
title: "40"
number: "63.1351"
heading: "Compliance dates."
url: "https://uscodex.org/cfr/40/63.1351"
---

# §63.1351. Compliance dates.

- (a) The compliance date for any affected existing source subject to any rule requirements that were in effect before December 20, 2006, is:
  - (1) June 14, 2002, for sources that commenced construction before or on March 24, 1998, or
  - (2) **June 14, 1999 or startup for sources that commenced construction after March 24, 1998.**
- (b) The compliance date for any affected existing source subject to any rule requirements that became effective on December 20, 2006, is:
  - (1) December 21, 2009, for sources that commenced construction after December 2, 2005 and before or on December 20, 2006, or
  - (2) **Startup for sources that commenced construction after December 20, 2006.**
- (c) The compliance date for existing sources for all the requirements that became effective on February 12, 2013, except for the open clinker pile requirements will be September 9, 2015.
- (d) **The compliance date for new sources is February 12, 2013, or startup, whichever is later.**
- (e) The compliance date for existing sources with the requirements for open clinker storage piles in [§ 63.1343(c)](/cfr/40/63.1343.md?p=c) is February 12, 2014.

## Notes

### Amendments

[76 FR 2836, Jan. 18, 2011, as amended at 78 FR 10053, Feb. 12, 2013]

### Source

Source: 64 FR 31925, June 14, 1999, unless otherwise noted.

### Authority

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

### Source

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

### Amendments

[76 FR 2836, Jan. 18, 2011, as amended at 78 FR 10053, Feb. 12, 2013]