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Water Supply (Water Fittings) Regs 1999

Water Regulations Compliance Certificate

A Water Regulations compliance certificate confirms that plumbing work meets the Water Supply (Water Fittings) Regulations 1999 in England and Wales, or the equivalent Water Byelaws 2014 in Scotland. It records that fittings, materials and backflow protection comply with the law.

The regulations exist to prevent waste, misuse, contamination and backflow of water within a supply. Some work is notifiable to the water supplier before it is carried out, and a compliance record demonstrates the installation was completed to the required standard.

TradePlanr lets you record the fittings, fluid categories and backflow protection on site and produce a clear PDF compliance certificate for the customer without returning to paperwork later.

Issue this certificate from your phone

TradePlanr generates this and 35+ other gas, electrical, oil, plumbing and renewables certificates as proper PDFs — filled on site, signed on screen and stored against the job. Works even with no signal. Free to download.

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What it covers

  • Property and customer details plus a description of the work carried out
  • Fittings and materials used and confirmation they are suitable and approved
  • Fluid category risk assessment for the points of use
  • Backflow prevention devices installed and their applicable fluid categories
  • Confirmation of whether the work was notifiable to the water supplier
  • Reference to the Water Supply (Water Fittings) Regulations 1999 or Scottish Byelaws 2014
  • Installer details and dated sign-off

When it's required

Compliance with the Water Supply (Water Fittings) Regulations 1999, or the Scottish Water Byelaws 2014, applies to all plumbing work connected to the public water supply. A compliance certificate provides evidence that a specific job met those requirements.

Certain work is notifiable, meaning the water supplier must be told before it starts. Examples include some backflow protection installations and specific fittings, and the certificate records whether notification applied.

The certificate is useful for the customer as evidence of compliant work, and may be requested by the water supplier, a landlord, a managing agent or during a property sale.

How to issue it in TradePlanr

  1. 1

    Enter the job and fittings details

    Record the property, a description of the work and the fittings and materials used, confirming they are suitable and approved for use on the water supply.

  2. 2

    Assess fluid categories and backflow

    Log the fluid category at each point of use and the backflow prevention devices fitted, matching each device to the fluid category it protects against.

  3. 3

    Confirm notifiable status

    Record whether the work was notifiable to the water supplier under the regulations, so the certificate shows the correct compliance position.

  4. 4

    Sign and store the PDF

    Capture the signature, generate the PDF compliance certificate and store it against the job, ready to email or hand to the customer.

Frequently asked questions

What are the Water Regulations?

They are the Water Supply (Water Fittings) Regulations 1999 in England and Wales, and the Water Byelaws 2014 in Scotland. They set the legal requirements for plumbing fittings, materials and backflow protection to prevent waste and contamination.

Is all plumbing work notifiable?

No. Some work must be notified to the water supplier before it starts, such as certain backflow protection installations and specific fittings, but much routine work is not notifiable. The certificate records which applied.

What are fluid categories?

Fluid categories rank the contamination risk of water at a point of use. They determine the level of backflow protection required, which is recorded on the compliance certificate.

Can I produce the certificate on site?

Yes. TradePlanr lets you record the fittings, fluid categories and backflow devices, capture the signature and generate the PDF at the property.

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