40 CFR § 148.4 - Procedures for case-by-case extensions to an effective date.

---
identifier: "/us/cfr/t40/s148.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 148.4 - Procedures for case-by-case extensions to an effective date."
title_number: 40
title_name: "Protection of Environment"
section_number: "148.4"
section_name: "Procedures for case-by-case extensions to an effective date."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "148"
part_name: "HAZARDOUS WASTE INJECTION RESTRICTIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 3004, Resource Conservation and Recovery Act, 42 U.S.C. 6901"
regulatory_source: "53 FR 28154, July 26, 1988, unless otherwise noted."
cfr_part: "148"
---


# 148.4 Procedures for case-by-case extensions to an effective date.

The owner or operator of a Class I hazardous waste injection well may submit an application to the Administrator for an extension of the effective date of any applicable prohibition established under subpart B of this part according to the procedures of § 268.5.