(a) A child annuity begins on the later of either the date chosen by the applicant or the earliest date permitted by law.
(b) Earliest date permitted by law -
(1) General rules. The earliest date permitted by law is the later of -
(i) The first day of the month in which the employee dies; or
(ii) The first day of the month in which the claimant becomes eligible for a child annuity as explained in part 216 of this chapter.
(2) Child age annuity. The earliest date permitted by law is the later of -
(i) The month shown in paragraph (b)(1) of this section; or
(ii) The first day of the sixth month before the month in which the application is filed.
(3) Child annuity based on full-time school attendance. The earliest date permitted by law is the latest of -
(i) The month shown in paragraph (b)(1) of this section;
(ii) The first day of the sixth month before the month in which the application is filed;
(iii) The first day of the month in which the claimant is in full-time school attendance at an elementary or secondary educational institution; or
(iv) The first day of the month in which the claimant attains age 18.
(4) Child disability annuity. The earliest date permitted by law is the latest of -
(i) The month shown in paragraph (b)(1) of this section;
(ii) The first day of the sixth month before the month in which the application is filed;
(iii) The first day of the month in which the claimant meets the definition of disability as explained in part 220; or
(iv) The first day of the month in which the claimant attains age 18.