((a)) ** Statutes deemed to authorize appropriations to Fund to finance unfunded liability** Any statute which authorizes—
((1)) new or liberalized benefits payable from the Fund under this part, including annuity increases other than under ;
((2)) extension of the benefits of the System to new groups of employees; or
((3)) increases in salary on which benefits are computed;
((b)) ** Authorization of appropriations to Fund** There is authorized to be appropriated to the Fund for each fiscal year an amount equal to the amount of the Foreign Service normal cost for that year which is not met by contributions to the Fund under .section 4045(a) of this title