Business and enterprise – guidance

Market surveillance projects for gas and electricity meters

Guidance on the approach to ensure that instruments placed on the market conform to the Measuring Instruments Directive (2004/22/EC).

Market surveillance

Regulatory Delivery (RD) is responsible for market surveillance activities under the new approach metrology directives covering:

  • non-automatic weighing instruments (NAWI)
  • water meters
  • measuring systems for liquids other than water
  • capacity serving measures
  • length measures
  • automatic weighing instruments

In keeping with the overall market surveillance activities implemented by RD, the utilities business team have adopted the same approach when assessing gas and electricity meters under market surveillance.

Desired outcome

RD on behalf of the UK has a statutory duty under the metrology directives to ensure that all appropriate measures are taken to ensure that measuring instruments that are subject to legal metrological control but do not comply with the applicable provisions of the directives are neither placed on the market or put into use.

Enforcement policy

RD works with notified bodies, inspection authorities and individual manufacturers and importers to achieve the desired outcome of the directives. We employ a variety of techniques including market intelligence gathering, test purchases, product testing and any other innovative solutions to deliver the outcomes.

RD follows the approach identified by WELMEC (European Cooperation in Legal Metrology) in market surveillance guides 5.2 Market Surveillance (Non-automatic weighing instruments (NAWI) and Measuring Instruments Directive (MID)) and 5.3 Risk Assessment Guide for Market Surveillance: Weighing and Measuring Instruments to fulfil a programme of interventions in the market place.

Each market surveillance activity is targeted at a sector, product type, manufacturer, distribution method or individual product following a risk assessment exercise.

When non-compliances are discovered the response will be both proportionate to the impact on consumers and the market place whilst remaining consistent with responses by other member states throughout Europe. RD fully participates in the activities of WELMEC Working Group 5 to ensure a high level of European consistency is achieved.

RD uses the appropriate sanction where necessary to ensure the outcomes identified in the directives are achieved. A full range of sanctions is available from administrative actions through to a full European safeguard action including product withdrawal from the market. Regulated entities that are affected by RD’s use of sanctions have a right of appeal as laid out in the RD customer charter which is available on request.

Summary report

As part of RD’s overarching corporate objectives, the utilities business team have initiated the UK’s first market surveillance project in relation to active electrical energy meters approved under Annex MI-003 of the MID.


If you wish to speak to a member of staff please contact:

Gas Metering Team

Utilities Team
Regulatory Delivery
Stanton Avenue

TW11 0JZ