06/29/1916
https://www.presidency.ucsb.edu...
"To these Departments, respectively, is delegated the duty of preparing and enforcing rules and regulations under this order to accomplish the purpose mentioned"
"This order shall take effect from this date"
"The cooperation of state, county and municipal civil service commissions with the United States Civil Service Commission is desirable in the existing exigency in meeting the needs of the Federal Gover..."
"The United States Civil Service Commission is accordingly authorized in its discretion to adopt as its own any eligible register of any such commission, with the consent of such commission."