The phrase "authority as head" is correct and usable in written English.
It can be used in contexts discussing leadership roles or positions of power within an organization or group.
Example: "In this organization, the board of directors serves as the authority as head, guiding the strategic direction of the company."
Alternatives: "leadership role" or "head authority".
He was invested with ecclesiastical insignia and political authority as head of the Greek population.
In the Byzantine Empire, the secular ruler was called "priest and emperor" and exercised authority as head of the church.
But Mr. Kohler insisted that those circumstances would not undermine his authority as head of the I.M.F.
The cardinal, using his authority as head of the Roman Catholic church in the Philippines, urged the people to take to the streets of Manila in protest.
The obong, or paramount leader, elected from among the heads of various Houses, traditionally exercised his authority as head of the Ekpe (Egbo), or Leopard, society.
He quickly establishes himself as a taciturn disciplinarian, exerting his authority as head of his long-deserted family without a syllable of apology or regret.
This mainly typified the absolutist monarchies led by rulers who exercised full authority as heads of states.
In a statement issued on 23 July, IFT acknowledges that its director, Carlos Muñoz, reported the case to the authorities as head of the public body that manages the two institutes' shared facilities.
Abbas, who heads the Palestinian Authority as well as the PLO and its main group, Fatah, addressed a rally in Ramallah – unusually, with Sheikh Hassan Yousef, Hamas's leader in the West Bank – in a ceremony which included laying a wreath at Yasser Arafat's tomb.
The City Council has oversight authority as well.
And there is little doubt that obstruction of justice, including actions taken by a President pursuant to his authority as the head of the Executive Branch, can be and has been used as grounds for impeachment.
