The league comprises 14 teams. A NB I/A season is split into a league stage and a playoff/playout stage. At the end of the league stage (14 teams) the top 5 teams play another league stage, another 5 play with each other, and then the top 8 teams qualify for the playoff stage. The playoffs are played in "
Best of five" format. The winning team of the final round are the champions of that season. The two bottom teams play with each other in "
Best of three" format. The losing team gets relegated. ==Current season==