Marco, there is an NCAA men's basketball central hub and an NCAA women's basketball central hub. Choose which gender basketball you are more interested in working, and register for that central hub. Once you pay for the central hub, you'll have access to the NCAA rules test, rulebook, casebook, and mechanics manual for men's or women's basketball. I am registered with the NCAA men's basketball central hub. Registration typically opens in August for the following season.
Once you get to know the college rules and mechanics, then you can try out to actually work college basketball games. I'd love to be able to work a college basketball game with you soon.
NCAA Men's Basketball Central Hub
https://ncaambb.arbitersports.com/fr...883/Site/Posts
NCAA Women's Central Hub
https://ncaawbb.arbitersports.com/fr...884/Site/Posts