This document provides general guidance on petrol fuel housekeeping. It does not pre-empt national or local regulations. It addressesThe issues of contamination by water or sediment that may occur inThe supply chain during manufacture, storage and/or transportation. It does not address contamination by other products, nor does it address possible contamination by water or sediment that may occur on board vehicles, however, an informative note on vehicle factors is presented in Annex A.