Joining the ranks of officials is not a difficult process.
Prospective officials take a written, open-book test, which is in several parts.
There is a general track and field module, and then there are tests covering the various event groups. After several years of practical experience at different types of meets and an additional test, an official may apply for National level ranking, and, ultimately, Master level ranking. Officiating at higher levels of events requires the various higher levels of certification. There are only small numbers of officials positions available at the prestigious USA Championships and Olympic Trials, and consideration requires a formal application and resume. However, there are still opportunities to work at major national events such as the USA Junior, Junior Olympic, and Masters Championships.