Certificates issued by members of schemes approved by a regulator are acceptable nationally.
Certificates issued by a member of a water company scheme must be accepted for worked completed in that water company’s area of supply. Whilst water companies are not obliged to accept certificates issued by members outside their area of supply, the custom and practice is to do so providing:
Their scheme is recognised by the local water undertaker
The proposed work is not a material change of use
The scope of their membership covers the type of plumbing work undertaken
They comply with their scheme terms and conditions
A certificate of compliance is a legal protection for the recipient against prosecution where the certified work is deemed non-compliant. This does not prohibit water companies from taking other enforcement action.
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