Code of Federal Regulations > Title 40 > Chapter I > Part 142 > Subpart K - Subpart K—Variances for Small System

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

GENERAL PROVISIONS

§ 142.301 - What is a small system variance?

§ 142.302 - Who can issue a small system variance?

§ 142.303 - Which size public water systems can receive a small system variance?

§ 142.304 - For which of the regulatory requirements is a small system variance available?

§ 142.305 - When can a small system variance be granted by a State?

REVIEW OF SMALL SYSTEM VARIANCE APPLICATION

§ 142.306 - What are the responsibilities of the public water system, State and the Administrator in ensuring that sufficient information is available and for evaluation of a small system variance application?

§ 142.307 - What terms and conditions must be included in a small system variance?

PUBLIC PARTICIPATION

§ 142.308 - What public notice is required before a State or the Administrator proposes to issue a small system variance?

§ 142.309 - What are the public meeting requirements associated with the proposal of a small system variance?

§ 142.310 - How can a person served by the public water system obtain EPA review of a State proposed small system variance?

EPA REVIEW AND APPROVAL OF SMALL SYSTEM VARIANCES

§ 142.311 - What procedures allow the Administrator to object to a proposed small system variance or overturn a granted small system variance for a public water system serving 3,300 or fewer persons?

§ 142.312 - What EPA action is necessary when a State proposes to grant a small system variance to a public water system serving a population of more than 3,300 and fewer than 10,000 persons?

§ 142.313 - How will the Administrator review a State's program under this subpart?