Junior International (13-18) and Senior (19+) competitions both play under the International Laws of the game.
While junior International games are played under the same rules as the adult game, for teams in Under 13 - Under 15 age groups, matches are also played under the National Safeplay Code(for all players 15 years and under) which was developed to emphasize safety and good conduct within the game by creating the best possible on-field environment as well as actively controlling undesirable actions.
Rugby League Laws of the Game International level with notes on the laws and NRL Telstra Premiership interpretations (Approved by the Australian Rugby League Commission)