# The Trade Effluents (Prescribed Processes and Substances) Regulations 1989, Regulation 3: Trade effluent containing prescribed substances


Section 74 of the 1989 Act (control of exercise of trade effluent functions in certain cases) shall apply to trade effluent in which any of the substances listed in Schedule 1 to these Regulations is present in a concentration greater than the background concentration.

---
Source: https://www.legislation.gov.uk/uksi/1989/1156/regulation/3 (the official version)
Page: https://openlegislation.uk/trade-effluents-prescribed-processes-and-substances-regulations-1989/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.