"o assist the Metropolitan Police Department in its law enforcement functions. (3) CSOSA shall inform a sex offender of the sex offender's duty to: (i) Comply with the requirements set forth in paragraph (a) of this section for initial registration; (ii) Periodically verify the address(es) at which the sex offender lives, resides, works, and/or attends school, and other information, as provided in" . . . .