noun
blank power of attorney; carte blanche
A legal document signed in blank, giving the holder full discretionary authority. Often used figuratively for unconditional delegation of decision-making power.
彼は社長から白紙委任状をもらって、自由に契約を進めた。
He received a blank power of attorney from the president and proceeded with the contract freely.
その提案は、議会が市長に白紙委任状を与えるようなものだ。
That proposal is like the council giving the mayor carte blanche.