15 U.S. Code § 770 - Appointments
Funds available to any department or agency (or any official or component thereof), and lawfully authorized for any of the specific functions which are transferred to the Administrator by this chapter, may, with the approval of the President, be used to pay the compensation and expenses of any officer appointed pursuant to this chapter until such times as funds for that purpose are otherwise available.
In the event that any officer required by this chapter to be appointed by and with the advice and consent of the Senate shall not have entered upon office on the effective date of this chapter, the President may designate any officer, whose appointment was required to be made by and with the advice and consent of the Senate and who was such an officer immediately prior to the effective date of this chapter, or any officer who was performing essentially the same functions immediately prior to the effective date of this chapter to act in such office until the office is filled as provided in this chapter:
Transfer of nontemporary personnel pursuant to this chapter shall not cause any such employee to be separated or reduced in grade or compensation, except for cause, for one year after such transfer.
Any person who, on the effective date of this chapter, held a position compensated in accordance with the Executive Schedule prescribed in chapter 53 of title 5, and who, without a break in service, is appointed in the Administration to a position having duties comparable to those performed immediately preceding his appointment, shall continue to be compensated in his new position at not less than the rate provided for his previous position.