---
kind: "section"
citation: "40 C.F.R. § 142.51"
title: "40"
number: "142.51"
heading: "Exemption request."
url: "https://uscodex.org/cfr/40/142.51"
---

# §142.51. Exemption request.


A supplier of water may request the granting of an exemption pursuant to this subpart for a public water system within a State that does not have primary enforcement responsibility by submitting a request for exemption in writing to the Administrator. Suppliers of water may submit a joint request for exemptions when they seek similar exemptions under similar circumstances. Any written request for an exemption or exemptions shall include the following information:

- (a) **The nature and duration of exemption requested.**
- (b) Relevant analytical results of water quality sampling of the system, including results of relevant tests conducted pursuant to the requirements of the national primary drinking water regulations.
- (c) Explanation of the compelling factors such as time or economic factors which prevent such system from achieving compliance.
- (d) **Other information, if any, believed by the applicant to be pertinent to the application.**
- (e) A proposed compliance schedule, including the date when each step toward compliance will be achieved.
- (f) Such other information as the Administrator may require.

## Notes

### Authority

Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.

### Source

Source: 41 FR 2918, Jan. 20, 1976, unless otherwise noted.