Food Standards Scotland (FSS) is responsible for ensuring that shellfish from designated harvesting areas meet the health standards laid down in EC Regulation 853/2004. Classifications are awarded according to the FSS Protocol for Classification and Management of E.coli results. Live bivalve molluscs (LBMs) harvesting areas are classified by monitoring the levels of E.coli in shellfish flesh.
Shellfish classification documents are published by FSS annually. Classification years run from April to March. Classifications are also updated quarterly.