As umpires and scorers gain knowledge, skills, and experience (and, in the case of umpires, pass formal exams) they become eligible to officiate in higher levels of cricket.
Both umpires and scorers usually begin their careers with some basic participation in junior cricket, and then progress to more formal involvement with secondary school and club cricket. Once they prove themselves at this level, umpires and scorers may then be appointed to age group, District, and Provincial A matches within their Major Association.
The very best umpires and scorers may then progress to matches under the jurisdiction of New Zealand Cricket: national tournaments, men's and women's domestic competitions, and women's internationals, New Zealand Under-19 and New Zealand A men's matches. Umpires recognised as the best in the world could then be appointed by the International Cricket Council to international men's matches, at home and overseas, while the top scorers will be appointed by NZC to men's home internationals.