Subject to subsection (b), cash relief under this subsection may not exceed $1.50 per month for each year of service of the employees so furnished relief, with a maximum of $45 per month, plus the amount of any cost-of-living increases in such cash relief granted before
October 1, 1979, pursuant to
section 181 of title 2 of the Canal Zone Code (as in effect on
September 30, 1979), nor be paid to any employee who, at the time of termination for disability prior to
October 5, 1958, had less than 10 years’ service with the Canal Zone Government, the Panama Canal Company, or their predecessor agencies on the Isthmus of Panama.