; (2) the individual did not cause the creation of such circumstances to disregard the requirement to comply; and (3) the individual complied as soon as such circumstances ceased to exist. 16. Actions to be taken when gun offender fails to comply An appropriate official shall inform the Attorney General and other accountable law enforcement agencies of any noncompliance by a gun offender to comply with the requirements of a registry. The appropriate official, the Attorney General, and each such law enforcement agency shall take any appropriate action to ensure compliance. 17. Federal assistance with respect to violations of registration requirements The Attorney General shall use the resources of Federal law enforcement, including the United States Marshals Service, to assist jurisdictions in locating and apprehending gun offenders who violate gun offender registration requirements. 18. Federal assistance in identification and location of gun offenders relocated as a result of a major disaster The Attorney General shall provide assistance to jurisdictions in the identification and location of a gun offender relocated as a result of a natural disaster or other major disaster. 19. Election by Indian Tribes (a) Election (1) In general A federally recognized Indian Tribe may, by resolution from their local governmental body— (A) opt to carry out this Act as a jurisdiction subject to its provisions; or (B) elect to delegate its functions under this Act to another jurisdiction or jurisdictions within which the territory of the Tribe is located and to provide access to its territory and such other cooperation and assistance as may be needed to enable such other jurisdiction or jurisdictions to carry out and enforce the requirements of this Act. (2) Imputed election in certain cases A Tribe shall be treated as if it had made the election described in paragraph (1)(B) if— (A) it is a Tribe subject to the law enforcement jurisdiction of a State under section 1162 of title 18, United States Code