Which rules change at U12: referee, offside, throw-ins, retreat line?

Q: Which rules change at U12: referee, offside, throw-ins, retreat line?

At U12-U13 the Canada Soccer Grassroots Standards list: Official: a referee. Sideline restarts: throw-in. Dribble-in and pass-in are permitted only up to U11. Offside: yes. Offside is Law 11 of the IFAB Laws of the Game and is implemented at U12. Retreat line: none. Match day format: festival or league format. League formats may be introduced from U10 but cannot include scores, standings or elimination or championship games. Source: Canada Soccer Grassroots Standards (https://canadasoccer.com/wp-content/uploads/2026/02/2026-CS-GrassrootsStandards-EN_final91.pdf)

Question

Accepted Answer

At U12-U13 the Canada Soccer Grassroots Standards list:

Official: a referee.
Sideline restarts: throw-in. Dribble-in and pass-in are permitted only up to U11.
Offside: yes. Offside is Law 11 of the IFAB Laws of the Game and is implemented at U12.
Retreat line: none.
Match day format: festival or league format. League formats may be introduced from U10 but cannot include scores, standings or elimination or championship games.

Source: Canada Soccer Grassroots Standards (https://canadasoccer.com/wp-content/uploads/2026/02/2026-CS-GrassrootsStandards-EN_final91.pdf)