# Chemical or biological agents.

- **operation:** document
- **citation:** 40 CFR 110.4
- **title:** Chemical or biological agents.
- **source type:** regulation
- **agency:** Environmental Protection Agency
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** 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]
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/40-cfr-110-4.json
- **markdown:** https://regulus.evalyn.ai/document/40-cfr-110-4.md
- **app url:** https://regulus.evalyn.ai/document/40-cfr-110-4
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-40/section-110.4
**body:**

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]
- **truncated:** false
- **body characters:** 192