(a) A potential leave contributor may, by written application to the agency head or designee, request that a specified number of hours be transferred from the annual or universal leave account of the employee to the annual or universal leave account of a potential recipient employee. (b) A leave contributor shall not contribute more than 1/2 of the amount of annual or universal leave that the leave contributor would be entitled to accrue during the leave year; provided, that a leave contributor may contribute restored leave without limitation.