In hearings under this subpart, administrative law judges must apply all governing agency rulings and governing agency precedent. They shall be responsible for the conduct of hearings and shall render their decisions as soon as is reasonably possible after the hearing is closed. Administrative law judges shall also be responsible for the preparation, certification, and forwarding of the complete record of proceedings and the administrative work relating thereto and, by arrangement with Directors of Industry Operations and representatives of the Office of Chief Counsel shall have access to facilities and temporary use of personnel at such times and places as are needed in the prompt dispatch of official business.