Approved manufacturers: conformity assessment

Apply to become an approved manufacturer

Approved manufacturers are manufacturers of weighing and measuring instruments whose quality system has been certified by a UK Approved Body primarily under the Module D conformity assessment procedure, as set out in the Non-Automatic Weighing Instruments Regulations 2016 (as amended) or Measuring Instruments Regulations 2016 (as amended). Approved manufacturers can complete conformity assessment of instruments as set out in their module certificate.

Some approved manufacturers for the Non-Automatic Weighing Instruments Regulations 2016 can have their quality system certified by a UK Approved Body under Module D for the purposes of requalification of instruments they have manufactured. UK Approved Bodies for Non-Automatic Weighing Instruments and Measuring Instruments can be found on the UK Market Conformity Assessment Bodies (UKMCAB) database.

Once certified by a UK Approved Body, manufacturer details will be passed to the Secretary of State for Business and Trade via the Office for Product Safety and Standards (OPSS) which will then add you to the list of approved manufacturers below. Approved manufacturers must maintain their conformity assessment certification to remain on the list and continue to place instruments onto the UK market.

Find an approved manufacturer

NAWI / MI approved manufacturers register

OPSS maintains an up to date register of all CAB approved manufacturers:

Approved Manufacturer List – JulyAugust 2025 (ODS, 11.811.7 KB)