This standard specifies the content, message structure, requirements, words, phrases and sentence patterns that should be included in English navigation warning documents. This standard applies to the drafting, dissemination and use of English navigation warning messages.
GB 17577.2-1998 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