Find a league close by which you are able to referee in. The league will have a referee appointment secretary. To find said secretary trail through the league website, or contact your RDO. Upon identification, email said secretary (CC in your RDO) and advise them who you are, where you live and any other pertinent information (e.g. refereeing level and background), ask if it would be possible to join the league, and give your closed dates for the upcoming month.
I have the option of running my appointments this way, but as of last season, at least two leagues would use me on every date I made myself available on. As I want the occasional weekend off, don't want to do two matches in a weekend too often, and would prefer to make myself available on "better" leagues, I end up having to take much closer control over my availability with various leagues.Find this quite unusual, round here we choose which leagues we'd like to officiate on (not a great choice!) when we register each season, RefSecs are given the details, matches come our way........simples