40 CFR § 300.411 - § 300.411 Response to CWA hazardous substance worst case discharges.

---
identifier: "/us/cfr/t40/s300.411"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 300.411 - §  300.411   Response to CWA hazardous substance worst case discharges."
title_number: 40
title_name: "Protection of Environment"
section_number: "300.411"
section_name: "§  300.411   Response to CWA hazardous substance worst case discharges."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "J"
subchapter_name: "SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS"
part_number: "300"
part_name: "NATIONAL OIL AND HAZARDOUS SUBSTANCES POLLUTION CONTINGENCY PLAN"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1251  42 U.S.C. 9601-9657; E.O. 13626, 77 FR 56749, 3 CFR, 2013 Comp., p. 306; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; E.O. 12580, 52 FR 2923, 3 CFR, 1987 Comp., p. 193."
cfr_part: "300"
---


# 300.411 §  300.411   Response to CWA hazardous substance worst case discharges.

(a) If the investigation by the OSC shows that a discharge is a worst case discharge as defined in the ACP, or there is a substantial threat of such a discharge, the OSC shall:

(1) Notify the NSFCC;

(2) Require, where applicable, implementation of the worst case portion of an approved facility response plan required by CWA section 311(j)(5);

(3) Implement the worst case portion of the ACP required by CWA section 311(j)(4); and

(4) Take whatever additional response actions are deemed appropriate.

(b) Under the direction of the OSC, the NSFCC shall coordinate use of private and public personnel and equipment, including strike teams, to respond to a worst case discharge and mitigate or prevent a substantial threat of such a discharge.

[89 FR 21966, Mar. 28, 2024]