NBA Rules. this is a big help to the site and a big boost to the basketball communites of the Internet. she took the time to copy down the entire rule book for our. The rules of basketball are the rules and regulations that govern the play, officiating, equipment . When the NBA started to allow zone defense in , a three-second rule for defensive players was also introduced. The shot clock was first Original rules · Fouls, free throws and · International Rules of. Basketball Basics for New Players and Coaches -- Learn the Basic Rules, Concepts, Court Layout, The rules of basketball, thankfully, are fairly straightforward.