40 CFR § 267.111 - What general standards must I meet when I stop operating the unit?

---
identifier: "/us/cfr/t40/s267.111"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 267.111 - What general standards must I meet when I stop operating the unit?"
title_number: 40
title_name: "Protection of Environment"
section_number: "267.111"
section_name: "What general standards must I meet when I stop operating the unit?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "I"
subchapter_name: "SOLID WASTES"
part_number: "267"
part_name: "STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE FACILITIES OPERATING UNDER A STANDARDIZED PERMIT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 6902, 6912(a), 6924-6926, and 6930."
regulatory_source: "70 FR 53453, Sept. 8, 2005, unless otherwise noted."
cfr_part: "267"
---


# 267.111 What general standards must I meet when I stop operating the unit?

You must close the storage and treatment units in a manner that:

(a) Minimizes the need for further maintenance; and

(b) Controls, minimizes, or eliminates, to the extent necessary to protect human health and the environment, post-closure escape of hazardous waste, hazardous constituents, leachate, contaminated run-off, or hazardous waste decomposition products to the ground or surface waters or to the atmosphere; and

(c) Meets the closure requirements of this subpart and the requirements of §§ 267.176, 267.201, and 267.1108. If you determine that, when applicable, the closure requirements of § 267.201(tanks) or § 267.1108 (containment buildings) cannot be met, then you must close the unit in accordance with the requirements that apply to landfills (§ 264.310). In addition, for the purposes of post-closure and financial responsibility, such a tank system or containment building is then considered to be a landfill, and you must apply for a post-closure care permit in accordance with 40 CFR part 270.