---
kind: "section"
citation: "40 C.F.R. § 66.12"
title: "40"
number: "66.12"
heading: "Content of notices of noncompliance."
url: "https://uscodex.org/cfr/40/66.12"
---

# §66.12. Content of notices of noncompliance.

- (a) Each notice of noncompliance shall be in writing and shall include:
  - (1) A specific reference to each applicable legal requirement of which the source is in violation;
  - (2) A brief statement of the factual basis for the finding of violation, together with a reference to any supporting materials and a statement of when and where they may be inspected;
  - (3) **Instructions on calculating the amount of the penalty owed and the schedule for payments.** Such instructions shall include (i) a statement of the date from which penalties should be calculated and (ii) a copy of the Technical Support Document and the Manual;
  - (4) Notice of the right to petition for a hearing to challenge the finding of noncompliance or to claim an exemption; and
  - (5) Notice that the penalty continues to accrue during the pendency of any hearings granted under this part or [part 67](/cfr/40/part67.md).
- (b) Each notice of noncompliance shall be transmitted to the source owner or operator either by personal service or by registered or certified mail, return receipt requested.

## Notes

### Authority

Authority: Sec. 120, Clean Air Act, as amended, 42 U.S.C. 7420.

### Source

Source: 45 FR 50110, July 28, 1980, unless otherwise noted.