On January 20, 2017, Reince Priebus, Assistant to the President and Chief of Staff, issued a memorandum to the heads of all executive departments and agencies concerning ongoing regulatory projects. Specifically, Priebus instructed agency heads to: (1) immediately withdraw all regulations pending before the Office of the Federal Register; and (2) where possible, postpone by 60 days the effective date of certain regulations published in the Federal Register that have not yet taken effect. Priebus excluded from his directive those regulations subject to statutory or judicial deadlines and those emergency regulations relating to health, safety, financial, or national security matters. Priebus also noted in his memorandum that agencies may be required to propose an additional rulemaking to delay the effective date for regulations have already been published in the Federal Register.