theres a sign up on there site. .just go to models then youll see become a model go there and sign up.

As someone who modeled from 9-14, I think it's kewl that your son is interested. But my advice is to really check out a number of agencies first because modeling agencies can be pretty inconsistent. Some are good and treat kids and parents fairly. Others are greedy and only out to make money. I was with a wonderful local agency who were great. They spent money for ballet classes to help my posture and movement and were always honest. BTW, does your son have a portfolio. If not, start one. Also dance classes would be a great idea. Good luck and let me know if I can help :D