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[Jimgolf]

Sorry, Mark, but it seems you are saying that when you get to ref in the NBA, you will call three-point goals from the 19'9" line, not the 23'9" line, because it is in the NFHS or NCAA rule book, or eject players after the 5th foul, not the 6th.

Leagues make the rules, referees enforce them. If you check with the rec league rules, I'm sure they say that NFHS rules will be followed, except where specified in the league rules (ex. no zone defenses, mercy rule, no dunking, each player must play 8 minutes per game, etc.) If the league changes the rules in the middle of the season, the rules still must be enforced.