Approval for Products used by water companies
Pipe Systems – (Excluding Stainless Steel)
Plastic, factory coated metallic, cementitious.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Other Products – Non-Metallic Construction Products
Anything not covered by product type specific application forms.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Stainless Steel Products
Anything made from stainless steel including pipes.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Chemicals
Treatment chemicals & mixtures of BSEN chemicals.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Membranes & Water Treatment Units
Membrane filters & water treatment units (for housings use either 2 or 3).
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Site and in-situ applied coatings
Coatings used for pipes, tanks and other structures.
Associated Advice Sheets
See Advice sheets 1 and 2 at the bottom of this page.
Chemical Additives
Chemicals used with membranes.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Electrochemical Generating Processes
Systems used to generate treatment chemicals.
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Filter Media
Filter media not covered by BSEN filter media standards (or mixtures of different BSENs).
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Metallic Construction Products
Metallic products not made from stainless steel.
Associated Advice Sheets
See Advice sheets 1 and 2 at the bottom of this page.
Release Agents
Release agents for site poured cements.
Associated Advice Sheets
Also see Advice sheets 1 and 2 at the bottom of this page.
Associated Annexes of the List of Approved Products
Advice Sheet 1 & 2
These advice sheets relate to all products on this page.
Other Information
Reg31 Enquiries
To contact the Regulation 31 team, please email reg31.enquiries@defra.gov.uk, or telephone +44(0)330 041 6501