Procedural Manual. Introduction. 1. INTRODUCTION. The Procedural Manual of the Codex Alimentarius Commission is intended to help Member governments JECFA's work continues to be of fundamental importance to the Codex Commission's deliberations on standards and guidelines for food additives, contaminants andThe paper begins by laying out the key problem for Codex – scientific uncertainty – and describes the forces that aggravate that problem. It then turns briefly A L I M E N T A R I U S. Joint FAO/WHO Food Standards Programme. 16. 2006. CODEX ALIMENTARIUS COMMISSION. Procedural Manual - Sixteenth edition.