According to the NMRA constitution there are 6 officers namely Chairperson, Vice-Chairperson, Secretary, Vice-Secretary, Treasurer and Vice-Treasurer. There is an executive board compromising of not more than 12 members including the officers, though additional members may be co-opted to serve on committees at the discretion of the board.

Elections are held at each AGM where board members are elected. Elected officers and board members retire annually but are eligible for re-election.

Holding elections regularly gives members a chance to evaluate the officials, meaning they can only be re-elected if they have proved that they can deliver and manage the affairs of the association in the interest of the members. It also gives other members a chance to be elected who may have skills/expertise and new ideas that could be relevant for the association to adopt new ways of doing things. All officers and committee members are unremunerated.