Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 439Subpart E - Subpart E—Research
View all text of Subpart E [§ 439.50 - § 439.52]
§ 439.50 - Applicability.

This subpart applies to discharges of process wastewater resulting from pharmaceutical research.

[63 FR 50436, Sept. 21, 1998]
authority: 33 U.S.C. 1311,1314,1316,1317,1318,1342
source: 48 FR 49821, Oct. 27, 1983, unless otherwise noted.
cite as: 40 CFR 439.50
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