This standard specifies the composition and style of navigation warning documents, message structure, message terms and sentence patterns. This standard applies to the drafting, broadcast and use of coastal navigation warning messages in Chinese and English.
GB 17577-2020 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