The tier I annuity component of a parent's insurance annuity is dependent on whether one or two parents are entitled.

(a) One parent entitled. A parent's tier I annuity component is equal to 82 1/2 percent of the PIA computed under § 228.10 of this part.

(b) More than one parent entitled. A parent's tier I annuity component is equal to 75 percent of the PIA computed under § 228.10 of this part.

(c) The amounts computed under paragraph (a) or (b) of this section may be adjusted for the family maximum. See § 228.14 of this part.