“Except for members of the staff of the agency issuing the principal economic indicator who have been designated by the agency head to provide technical explanations of the data, employees of the Executive Branch shall not comment publicly on the data until at least one hour after the official release time,” according to the White House Office of Management and Budget’s Statistical Policy Directive No. 3, adopted in 1985.

Source: Los Angeles Times June 01, 2018 15:56 UTC