The phrase "allowed to cast a" is correct and usable in written English.
It can be used in contexts where permission is granted to perform an action, often related to voting, fishing, or making a decision.
Example: "As a member of the committee, I am allowed to cast a vote on the proposed changes."
Alternatives: "permitted to make a" or "authorized to submit a".
By law, any voter who arrived before 7pm is allowed to cast a ballot".
For the first time, Hong Kong residents will all be allowed to cast a vote for their leader.
Under the law, a person not listed on the registration rolls must be allowed to cast a provisional ballot.
But after he complained to election officials, he was allowed to cast a vote, along with others who produced valid identification.
"The misdeeds of some companies or individuals must not be allowed to cast a shadow on the fundamental integrity of our global capital markets system".
If so, the person will be allowed to cast a ballot after signing an affidavit attesting to his or her identity.
The aching poignancy of the final scene (beautifully lit here like an Old Master) where our hero and Laura Carmichael's deeply touching Sonya stoically resume their life of drudgery was allowed to cast an unbroken spell.
Reflecting the presence of Mr. Cheney, whom the Constitution allows to cast a vote in case of a tie, Mr. Daschle agreed that the committee chairmen will be Republicans.
Under federal law, voters whose eligibility cannot be verified at the polling place must be allowed to cast at least a provisional ballot; such ballots must be counted if election officials later confirm that the voter is legitimate.
These voters, who tend to favor Sanders, are allowed to cast ballots in a Democratic primary in the state, but must know to ask for the Democratic ballot.
For in this case the prosecution was allowed to cast doubt on an accused's testimony that he acted in self-defense by forcing him to testify that he did not go to the police of his own volition, before he had been indicted, charged, or even accused of any offense, and volunteer his version of the events.
