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As an integral part of a participating petroleum terminal’s safety management system, the scheme aims to identify vehicles and trailers that have been inspected at least every six months by approved technicians and deemed to meet specified safety standards for admittance to fuel loading terminals.

The SLPS is recognised by members of the UK Petroleum Industry Association (UKPIA), the Tank Storage Association (TSA) and Liquid Gas UK. The scheme applies to terminals supplying the following fuels with the following UN numbers: 


Liquid fuels

  • UN1202 – Gas oil or diesel fuel or heating oil, light
  • UN1203 – Gasoline or petrol or motor spirit
  • UN1223 – Kerosene
  • UN1863 – Fuel, aviation, turbine engine
  • UN1170 – Ethanol


  • UN1011 – Butane
  • UN1965 – Hydrcarbon gas mixture
  • UN1978 - Propane


The scheme does not apply to vehicles registered outside England, Wales, Scotland and Northern Ireland or vehicles loading bitumen, black oil or lubricants.

How the scheme is run

The scheme is owned by UKPIA with support from the TSA. The two associations, together with member representatives, set the standards and direct the scheme by way of a Management Group. Logistics UK delivers the scheme on their behalf and is an advisory member of the Management Group, along with the Energy Institute, the Downstream Oil Distribution Forum and a User Group representative.

The Management Group sets the standards for the inspection of road tankers, inspection technician training and inspection provider assessments. Logistics UK manages a database of approved Inspection Providers, Inspection Technicians, inspected vehicles, trailers and supplies SLPS discs to Inspection Providers. Fuel loading terminals can assess the status of vehicles and trailers seeking entry by inspecting vehicles’ discs on and by accessing the SLPS database.