Appendix A 12.1 An overseas player cannot play for any club in the League or in any competition organised by the League unless the club has registered that player with the Hon. Secretary before any match in which he plays but cannot play in the League or in any competition organised by the League until he is so registered. No such overseas player shall be registered after 30th June except with the consent of the Committee.
12.2 No team in the League shall have more than one overseas player in any match.
12.3 A player is an overseas player unless he satisfies one of the following conditions
a. He was born in the U.K.
b. He is a British citizen or holds a U.K. passport.
c. He is and has been resident in the U.K for at least 4 years.
d. He is under 18 years of age and is either living with a parent who satisfies one of the above conditions or is receiving full time education.    

The process of registering an overseas player does not exclude the club's duty to ensure that the player is in good standing within the game. For example, he must not be subject to a ban in this or any other league, he must not be disqualified to play by virtue of any of the league's rules or appendices, and he must be legally entitled to play within the UK.