40 CFR § 149.1 - Purpose.

---
identifier: "/us/cfr/t40/s149.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 149.1 - Purpose."
title_number: 40
title_name: "Protection of Environment"
section_number: "149.1"
section_name: "Purpose."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "149"
part_name: "SOLE SOURCE AQUIFERS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sec. 1424(e), Safe Drinking Water Act (42 U.S.C. 300h-3(e); sec. 1427 of the Safe Drinking Water Act, (42 U.S.C. 300h-6)."
cfr_part: "149"
---


# 149.1 Purpose.

The purpose of this subpart is to provide criteria for identifying critical aquifer protection areas, pursuant to section 1427 of the Safe Drinking Water Act (SDWA).