Prime Minister Julia Gillard's unprecedented early announcement that the federal poll would be on September 14 sparked debate about whether the "election period", which triggers special broadcasting rules, had begun.
The Australian Communications and Media Authority says it hasn't.
But it's been reported that some commercial television stations have legal advice that say the special provisions of the Broadcasting Services Act have been triggered.
Broadcasters are required to vet any political advertising and ensure balance in any coverage under those rules.
"No, I don't believe so," Senator Conroy said.
He said the government would not release the advice publicly.
Communications Department secretary Peter Harris said the department's view was that the election period began when the writs were issued - on August 12.
Comment was being sought from Free TV, the commercial networks' peak body.