General. A local law enforcement unit shall: Establish a schedule for periodic registration for each child sexual offender and sexually violent predator; and Maintain a copy of documents pertaining to periodic registration. A local law enforcement unit shall notify the Sex Offender Registry Unit when: A child sexual offender does not appear for annual registration as required under Regulation .10 of this chapter; or A sexually violent predator does not return the address verification and change of address form as required under Regulation .10 of this chapter. If a local law enforcement unit receives notice that a child sexual offender or sexually violent predator has changed address by moving: Out of the local law enforcement unit's county, it shall delete the registrant from the periodic registration process; or Into the local law enforcement unit's county, it shall add the registrant to the periodic registration process. Periodic registration of a child sexual offender follows the same procedure established under Regulation .07 of this chapter. Periodic Registration of a Sexually Violent Predator. A local law enforcement unit shall send an address verification and change of address form to the last reported address of a sexually violent predator: By certified mail, return receipt requested; and Not later than 15 days before the periodic registration deadline for the registrant. Within 5 business days of receiving a signed address verification and change of address form from a sexually violent predator, a local law enforcement unit shall send the address verification and change of address form to the Sex Offender Registry Unit and maintain a copy for local records.