We play in the Surrey Waterfall Junior League

The key elements of the Under 13s Rules of Play are:

Team numbers: a maximum of 13-a-side
Maximum pitch size: 90 metres x 60 metres
Ball Size: 4
Maximum minutes each half: 25
6 players in a fully contested scrum (all players must be confident and competent)
No limit on numbers contesting for the ball including in the maul and ruck
Sin Bin: 5 minutes