Audit Reports Wales Food Standards Manual The Food Standards Manual provides a reference to Welsh food composition and food labelling legislation. Guidance: Wales Guidance notes for Regulations in Wales. Statutory Instruments (Wales) In this section you will find details of Statutory Instruments (SIs) for Wales. They are organised by year of publication. Clicking on the name of an SI will take you to the relevant section on the Office of Public Sector Information (OPSI) website.