40 CFR § 139.27 - Refrigeration and air conditioning.

---
identifier: "/us/cfr/t40/s139.27"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 139.27 - Refrigeration and air conditioning."
title_number: 40
title_name: "Protection of Environment"
section_number: "139.27"
section_name: "Refrigeration and air conditioning."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "139"
part_name: "DISCHARGES INCIDENTAL TO THE NORMAL OPERATION OF VESSELS"
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"
regulatory_source: "89 FR 82131, Oct. 9, 2024, unless otherwise noted."
cfr_part: "139"
---


# 139.27 Refrigeration and air conditioning.

(a) The requirements in paragraph (b) of this section apply to discharges of condensation from refrigeration, air conditioning, and similar chilling equipment.

(b) The direct overboard discharge of any condensate that contacts toxic or hazardous materials is prohibited.