Looks like page 27 has the format: http://www.iata.org/whatwedo/stb/Documents/BCBP-Implementation-Guide-5th-Edition-June-2016.pdf http://www.iata.org/whatwedo/s

Looks like page 27 has the format: http://www.iata.org/whatwedo/stb/Documents/BCBP-Implementation-Guide-5th-Edition-June-2016.pdf http://www.iata.org/whatwedo/stb/Documents/BCBP-Implementati... Starts with M1.