The phrase "asserting that the authority" is correct and usable in written English.
It can be used when discussing claims or statements made regarding the legitimacy or power of an authority figure or institution.
Example: "The report is asserting that the authority responsible for the regulation has failed to enforce the necessary standards."
Alternatives: "claiming that the authority" or "stating that the authority".
Four days before the transportation authority board voted on the contract, City Comptroller John C. Liu sent a letter to the authority's chairman, Jay H. Walder, asserting that the authority needed to use extra care in selecting a contractor for its radio system upgrade.
The Public Employment Relations Board, a state body that oversees labor relations for government employees, did not issue a decision yesterday in response to a complaint that the union filed on Sunday, asserting that the authority had violated state law by including its pension demands as part of what it said was its final offer.
The spokesman, Alvi Karimov, had been asserting that the authorities could not be arresting gay men because gay men did not exist in Chechnya.
The revised complaint (see below) continues to assert that the authority "constitutes an exercise of Congress's power under the Bankruptcy Clause".
The union asserted that the authority's proposal would reduce workers' take-home pay by 2.3percentt by requiring them to divert that percentage toward pension contributions.
Despite Mr. Kessel's denials, Mr. Sabatino continued to assert that the authority had been collecting more than $135 million annually through an undisclosed 5.1percentt rate surcharge.
The Commissary acknowledged that he had no specific permission to build the bakeries but asserted that the authority "belonged to the officers commanding the troops who were placed in the building".
The M.T.A.'s chief negotiator, Gary Dellaverson, asserted that the authority's insistence on a wage freeze and concessions had nothing to do with a lack of respect but was caused by the authority's deficit of more than $2 billion.
I will go farther, and assert, that the authority of the British Parliament over America, would, in all probability, be a more intolerable and excessive species of despotism than an absolute monarchy.1 The power of an absolute prince is not temporary, but perpetual.
Spokeswoman Lisa Marie Alley asserted that the authority is not facing opposition.
The first applicant asserted that the authorities were responsible for the death of her husband and she and the other applicants asserted that the authorities had failed to take appropriate measures to mitigate the risks to their lives posed by natural hazards.
