This standard specifies the composition and style of navigational warning documents, message structure, wording and sentence patterns of messages. This standard applies to the drafting, dissemination and use of coastal Chinese and English navigation warning messages.
GB 17577-2009 history
2020GB 17577-2020 The standard format of navigational warnings in People's Republic of China
2009GB 17577-2009 The standard form of P.R.C for navigational warnings
1998GB 17577.2-1998 The standard form of P.R.C. for navigational warnings in English