Pirate77,
Our son went the JC route out of High School, which proved to be the best direction for him. He's now at a 4 year D1 university in New York and is really happy. Yes, all the NCAA recruiting rules still apply, which includes signing periods, contacts, visits, etc. But you should go to the NCAA NLI website to determine what applies to him, especially if he chooses to go to a D2, D3 or NAIA school. If his JUCO coach has had previous athletes go on to 4 year schools he can also give guidance.
The 4 year college recruiters will recruit your son just like they would any other HS player. There are requirements to transfer from the JUCO schools to the university of his choice, which includes transferable credits, eligibility, and so on. This needs to be looked into when determining what each school requires for transfers.
I recommend keeping a notebook for any and all contacts, letters, inquiries to his current coach by recruiters to keep track of these schools and their interest in your son to keep it all straight. You can also include showcases and camps he attends, listing coaches at these events.
Best of luck to you and your son. Just remember everyone is chasing the same dream and it can be very competitive. Just keep focused and play harder and better then your opponent.