Tournament rules help

I got one boy who is seven another wich is 9. What class does each shoot in a bha tournament and what is each kids furthest distance. Got them a bow for Xmas and they want to go shoot a tournament. I have a Mathews switchback three pins fall away rest just basic hunting set up. I am 36 what class am I in. Looked on BHA website but couldn't figure it out. Haven't been in 15 years to tournament just won't to get boys practiceing at right ranges.

BHA uses ASA rules now.
http://www.asaarchery.com/IP/index.php/asa-federation/asafed-rules/federation

Kids can shoot elementary school pins which is 20 yds max. You can shoot bow novice at 30 yds or hunter at 40 yds or unlimited at 45 yds. Its your choice.

Alright I am confused what happen to cubs, and hunter a or b I don't remember al these classes and don't see cubs mentioned in that link

Bowhunter a = hunter
bowhunter b = bow novice
elementary school pins = cubs
It's the same thing ASA just calls it something diferent.