The state associations will usually provided rulebooks and other materials. There is a wide verity in game fees. Also the state you officiate in will have direct effect on the amount you get paid. The best thing to do is ask a veteran official to be your mentor. Be sure to discuss rules and situations with your mentor.
Most organizations make it mandatory to attend a rules interpretation meeting.
Some organizations require you to pass a written test, pay dues and attend a certain number of meetings through the season. The place to start is the youth level . This is where you can make mistakes because everyone is in the learning process. At this level is where you obtain a good foundation for officiating. One league that is located in many cities throughout the United States is the Pop Warner league.