Regulations last checked for updates: May 01, 2025

Title 40 - Protection of Environment last revised: Nov 01, 2025
§ 439.20 - Applicability.

This subpart applies to discharges of process wastewater resulting from the manufacture of pharmaceutical products by extraction.

[63 FR 50430, Sept. 21, 1998]
source: 48 FR 49821, Oct. 27, 1983, unless otherwise noted.
cite as: 40 CFR 439.20