18.—(1) Every self-employed person shall, before 31st December 1992 or within 3 months of the commencement of his trade, business, profession or vocation, whichever is the later, obtain, complete and submit to the Board a registration form as may be determined by the Board unless he has been otherwise notified by the Board.
(2) Every self-employed person, whose particulars have been provided by the Comptroller or any other authority or who has completed and submitted the registration form to the Board, shall be registered and allotted a reference number.
(3) Every registered self-employed person who ceases to be engaged in his trade, business, profession or vocation shall inform the Board in writing within one month of such cessation and if he subsequently resumes his trade, business, profession or vocation, he shall inform the Board in writing within one month after so resuming.