(a) A Dealer's Aircraft Registration Certificate expires 1 year after the date it is issued. Each additional certificate expires on the date the original certificate expires.

(b) The holder of a Dealer's Aircraft Registration Certificate shall immediately notify the FAA Aircraft Registry of any of the following --

(1) A change of his name;

(2) A change of his address;

(3) A change that affects his status as a citizen of the United States; or

(4) The discontinuance of his business.