During each period in which the optional life insurance on family members is in force the full cost thereof shall be withheld from the employee’s pay. During each period in which an employee continues optional life insurance on family members after retirement or while in receipt of compensation under subchapter I of chapter 81 of this title because of disease or injury to the employee, as provided in subsection (c) of this section, the full cost shall be withheld from the annuity or compensation, except that, beginning at the end of the calendar month in which the former employee becomes 65 years of age, the optional life insurance on family members shall be without cost to the employee. Notwithstanding the preceding sentence, the full cost shall be continued after the calendar month in which the former employee becomes 65 years of age if, and for so long as, an election under this section corresponding to that described in section 8714b(c)(3)(B) remains in effect with respect to such former employee. Amounts so withheld shall be deposited, used, and invested as provided in
section 8714 of this title and shall be reported and accounted for together with amounts withheld under
section 8714a(d) of this title.