10/28/1948
https://www.presidency.ucsb.edu...
"The primary aim of manpower mobilization is to safeguard our national security through the maximum development and use of our human resources."
"The greatest care must be exercised to assure that the supply of persons possessing critical skills will be distributed among military and civilian activities in a manner which will contribute most to..."
"Authority to employ persons under this subsection 101(a) in any such department or agency shall not be redelegated by the head of such department or agency."
"In the case of appointments under subsection 101(a) hereof, exemption hereunder shall not extend to the receipt or payment of salary in connection with the appointee's Government service hereunder fro..."