(a) Pursuant to section 105(1) of the Act, every holder of a Certificate of Registration shall notify the Secretary within thirty (30) days of each change of permanent place of residence. Said persons may also furnish additional mailing addresses.

(b) The notification required in paragraph (a) of this section shall be in writing, by certified mail and addressed to the Administrator, Wage and Hour Division, 200 Constitution Avenue NW, Washington, DC 20210.

(c) Such change of address shall be deemed effective upon receipt by the Administrator, unless a later date is specified in the notice.