A coal mine worker for a coal mine, or part of a coal mine, stops being a site safety and health representative if the worker—
(a) tells the site senior executive for the coal mine that the worker resigns as site safety and health representative; or
(b) stops being a coal mine worker at the coal mine, or part of the coal mine; or
(c) is removed from office by a vote of a majority of coal mine workers at the coal mine, or part of the coal mine, as notified in writing to the site senior executive for the coal mine.