The document provides an overview of Part 1 of the IMDG Code, which covers general provisions, definitions, training, and security provisions for transporting dangerous goods by sea. Part 1 defines key terms, sets training requirements for shore-side personnel, extracts relevant regulations from international conventions like SOLAS and MARPOL, and recommends security measures to prevent misuse of dangerous goods. It emphasizes that most of Part 1 is recommendatory, except for definitions, training provisions, and a mandatory requirement that personnel be aware of security measures for transporting dangerous goods.