40 CFR § 110.4 - Chemical or biological agents.

---
identifier: "/us/cfr/t40/s110.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 110.4 - Chemical or biological agents."
title_number: 40
title_name: "Protection of Environment"
section_number: "110.4"
section_name: "Chemical or biological agents."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "110"
part_name: "DISCHARGE OF OIL"
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  33 U.S.C. 1321(b)(3) and (b)(4) and 1361(a); E.O. 11735, 38 FR 21243, 3 CFR parts 1971-1975 Comp., p. 793."
regulatory_source: "52 FR 10719, Apr. 2, 1987, unless otherwise noted."
cfr_part: "110"
---


# 110.4 Chemical or biological agents.

The addition of any chemical or biological agent, or any other substance, to oil to be discharged that would circumvent the provisions of this part is prohibited.

[88 FR 38332, June 12, 2023]