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 (FAQ)
We have provided the following answers to frequently asked questions about Regulation 31 :
FAQ1 – How do I apply for approval of my products?
FAQ2 – What claims can I make about my approved products?
FAQ3 – Can the DWI enter into a confidentiality agreement concerning product ingredients?
FAQ4 – What products can be approved for use with drinking water?
FAQ5 – How can I check whether a product is approved for use with drinking water supplies?
FAQ6 – Can I apply for approval of my process?
FAQ7 – Do products used in contact with treatment chemicals need to be approved under Regulations?
FAQ8 – Can approval be given for products used with private water supplies?
FAQ9 – Can bitumen containing products be approved for use with drinking water supplies?
FAQ10 – Can reworked or recycled materials be approved?
FAQ11 –What are the requirements concerning the use of metallic products with brackish water intended for treatment for human consumption?
FAQ12 – The use of products for emergency disinfection of public water supplies
FAQ14 – Product formulation details and material safety data sheets (MSDS)
FAQ16 – How can I apply to use a product for research purposes?
FAQ17 – Can a product be approved for use solely with untreated water intended for human consumption?