On this page are the ITU documents.
The original ones can be found at the ITU website http://www.itu.int/rec/R-REC-M.1371/en
Relevant documents are:
- ITU-R M.1371-5 Technical characteristics for an automatic identification system using time-division multiple access in the VHF maritime mobile band (AIS)
- ITU-R M.585-7 Assignment and use of identities in the maritime mobile service (MMSI)
- ITU Radio Regulations Appendix 18
- ITU Table of Maritime Identification Digits (MID)