Blog 23 May 2026
Approved Document H3 (rainwater drainage)

Statutory guidance on surface water and rainwater drainage from buildings and paved areas.

Blog 23 May 2026
WIAPS (Water Industry Approved Plumbers Scheme)

Historic UK plumbing accreditation scheme, now consolidated within Watersafe.

Blog 23 May 2026
Approved Document H4 (building over sewers)

Guidance on building works that pass over or close to public sewers and lateral drains.

Blog 23 May 2026
APHC certification

Association of Plumbing and Heating Contractors trade body certification for UK installers.

Blog 23 May 2026
Approved Document H5 (separate systems)

Guidance on the separation of foul and surface water drainage on new developments.

Blog 23 May 2026
CIPHE membership

Chartered Institute of Plumbing and Heating Engineering, the UK professional body for plumbing.

Blog 23 May 2026
Approved Document H6 (solid waste storage)

Guidance on the design of facilities for the storage of household and commercial solid waste.

Blog 23 May 2026
CSCS card (Construction Skills)

UK construction industry certification card showing site safety and trade qualifications.

Blog 23 May 2026
Water Industry Act 1991

Primary UK legislation governing the duties and powers of water and sewerage undertakers.

Blog 23 May 2026
Confined Space Regulations 1997

UK regulations setting out duties and safe systems of work for entry into confined spaces.