Self-certification for plumbing and drainlaying scheme commences on 7 September 2026

Posted: 7 September 2026

The self-certification for plumbing and drainlaying scheme commences on 7 September 2026. The voluntary scheme allows endorsed plumbers and drainlayers to self-certify that eligible work complies with a building consent, without the need for building consent authority (BCA) inspections.

The scheme aims to speed up the building consent process while maintaining existing safeguards.

Only plumbing and drainlaying that needs a building consent can be self-certified. All self-certified plumbing and drainlaying work must comply with a building consent.

To self-certify work under the scheme, plumbers and drainlayers must:

  • hold certifying registration
  • meet the eligibility requirements
  • be endorsed by the Plumbers, Gasfitters, and Drainlayers Board.

Homeowners and building owners can choose to either:

  • have eligible plumbing and drainlaying work self-certified by an endorsed plumber or drainlayer
  • continue with the standard BCA inspection process.

Information for plumbers and drainlayers, BCAs, designers, consent applicants, homeowners and building owners is available on Building Performance.

Self-certification for plumbing and drainlaying scheme

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This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: