(a) Credit shall be given in determining years of service for the purpose of section
6303 (a) for
(1) service as an employee of a county committee established pursuant to section 8(b) of the Soil Conservation and Allotment Act or of a committee or an association of producers described in section 10(b) of the Agricultural Adjustment Act; and
(2) service under a nonappropriated fund instrumentality of the Department of Defense or the Coast Guard described in section
2105 (c) by an employee who has moved without a break in service of more than 3 days to a position subject to this subchapter in the Department of Defense or the Coast Guard, respectively.