810. Church. An established church, in addition to the local church conference and the local board of administration, shall have a minimum organization consisting of a local church secretary (830), a local church treasurer (842), an offering teller (845:3), an auditing committee (863), and a board of trustees consisting of at least three members (850-859). Normally it would have a Sunday school superintendent and staff (889-910). Additional offices, positions, and committees may be added as provided herewith by the local church conference and the local board of administration as need requires and as qualified personnel are available.