(a) A person commits the crime of failure to register as a sex offender or child kidnapper in the second degree if the person
(1) is required to register under AS 12.63.010;
(2) knows that the person is required to register under AS 12.63.010; and
(3) fails to
(A) register;
(B) file written notice of
(i) change of residence;
(ii) change of mailing address;
(iii) establishment of an electronic or messaging address or any change to an electronic or messaging address; or
(iv) establishment of an Internet communication identifier or any change to an Internet communication identifier;
(C) file the annual or quarterly written verification; or
(D) supply accurate and complete information required to be submitted under this paragraph.
(b) In a prosecution for failure to register as a sex offender or child kidnapper in the second degree under (a) of this section, it is an affirmative defense that
(1) unforeseeable circumstances, outside the control of the person, prevented the person from registering under (a)(3)(A) of this section or filing or supplying the written notices, verification, and other information required under (a)(3)(B) - (D) of this section; and
(2) the person contacted the Department of Public Safety orally and in writing immediately upon being able to perform the requirements described in this section.
(c) Failure to register as a sex offender or child kidnapper in the second degree is a class A misdemeanor.