High School Basketball Rules?

I am hosting a Basketball Tournament. The officials are HS certified. The teams aren't familiar with HS rules and regulations. What are some important rules that these teams needs to know prior to the tournament.
For example, high school here in NC does not have a shot clock.

?2015-07-30T21:18:52Z

Get a rule book from the officials or the league dear.

NY mets2015-07-30T21:19:16Z

Which high school do you go to? I live in nc.