The phrase "authority to avert" is correct and usable in written English.
It can be used in contexts where someone is granted the power or permission to prevent or avoid something undesirable.
Example: "The committee has the authority to avert any potential crises by implementing new policies."
Alternatives: "power to prevent" or "permission to avoid".
The architects of the plan, Timothy F. Geithner, Treasury secretary, and Lawrence Summers, director of the National Economic Council, said it was essential to give the Fed more authority to avert or at least minimize future market crises.
Shouldn't these critical questions be addressed by someone in authority to avert a future catastrophe?
Many of those operational factors affect all care home operators, which is why the sector is lobbying central government to shovel cash to local authorities to avert a crisis.
While December's report laid bare the brutality of CIA torture, UK authorities continue to avert their eyes.
United States law enforcement authorities, seeking to avert a spillover of drug violence from Mexican border cities, are cautiously trying out new cross-border cooperation with the Mexican federal police, according to senior Homeland Security officials.
With the Japanese authorities working to avert a catastrophic meltdown at the Fukushima Daiichi nuclear power plant and one other Japanese plant showing problems, the safety of America's nuclear plants — and the wisdom of any expansion — is beginning to come under a new round of scrutiny.
Standard & Poor's is the only agency ever to downgrade the United States Treasury's credit, which it did in August 2011 by one notch to AA-plus, when Congress nearly failed to increase the government's borrowing authority in time to avert a cash crunch.
The authorities are determined to avert a worldwide slump in share prices like the crashes of 1987 or 1929.
The authorities are hoping to avert trouble ahead of a demonstration scheduled for later on Monday.
Fortunately, the authorities were able to avert this potential tragedy.
Or ask Egyptian telecom authorities, who attempted to avert "chaos" by resorting to the blunt instrument of severed wires; an entire country was disconnected, at least temporarily, from the global network.
