Which laws apply to Under 13 to Under 18 rugby league teams?

Junior International (13 to 18) and Senior (19+) competitions both play under the Rugby League Laws of the Game, International Level. Junior International games use the same rules as the adult game.

• The current edition published on playrugbyleague.com is dated April 2023 and was approved by the Australian Rugby League Commission. It includes notes on the laws and NRL Telstra Premiership interpretations.
• Teams in the Under 13 to Under 15 age groups also follow the National SafePlay Code, which applies to all players up to and including Under 15 (edition: NRL Game Development and Education Team, February 2024).
• Under 12 and younger teams play the separate modified Junior Rugby League Laws (6-12 years), the 2026 edition.

Sources: https://www.playrugbyleague.com/referee/laws-of-the-game/international-13splus-laws and https://www.playrugbyleague.com/safety/safeplay/