provide for the provisions of this Part to apply with prescribed modifications in cases where a person who was the only person registered under this Part in respect of an establishment or agency has died;

require the personal representatives of a deceased person who was registered in respect of an establishment or agency to notify the registration authority of his death.

provide for the establishment or agency to be carried on for a prescribed period by a person who is not registered in respect of it; and

include provision for the prescribed period to be extended by such further period as the registration authority may allow.