FAQs and Letters

Reg 31 Letters

Occasionally the Drinking Water Inspectorate uses Reg 31 letters to communicate with the water industry, applicants and other relevant parties;

Frequently Asked Questions

Test Protocols have been prepared primarily for use by the designated test laboratories and provide test requirement details for the various types of products (e.g. pipes, tanks, coatings, linings, filter media and membrane systems etc).

Currently the following Test Protocols are available :

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