40 CFR § 227.28 - Release zone.

---
identifier: "/us/cfr/t40/s227.28"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 227.28 - Release zone."
title_number: 40
title_name: "Protection of Environment"
section_number: "227.28"
section_name: "Release zone."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "H"
subchapter_name: "OCEAN DUMPING"
part_number: "227"
part_name: "CRITERIA FOR THE EVALUATION OF PERMIT APPLICATIONS FOR OCEAN DUMPING OF MATERIALS"
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. 1412 and 1418."
regulatory_source: "42 FR 2476, Jan. 11, 1977, unless otherwise noted."
cfr_part: "227"
---


# 227.28 Release zone.

The release zone is the area swept out by the locus of points constantly 100 meters from the perimeter of the conveyance engaged in dumping activities, beginning at the first moment in which dumping is scheduled to occur and ending at the last moment in which dumping is scheduled to occur. No release zone shall exceed the total surface area of the dumpsite.