The phrase "authorities revised" is correct and usable in written English.
It can be used when referring to changes or updates made by official bodies or organizations.
Example: "The authorities revised the regulations to ensure better compliance with safety standards."
Alternatives: "officials updated" or "regulatory bodies amended".
(The authorities revised the number downward on Monday, saying that some names had been counted twice).
The Italian authorities revised the number of missing on Wednesday to 26 people, including a retired American couple, and identified one of the five waterlogged bodies found on Tuesday as that of a 42-year-old Hungarian crew member.
On Saturday, authorities revised down a death toll to one person, but emphasised they were still searching for 13 miners and 10 residents of Beto Rodrigues, including a five-year-old child.
The 30 - 28 activists and two freelance journalists - were initially charged with piracy, but authorities revised it to hooliganism.
They were initially charged with piracy, but authorities revised it to hooliganism, which carries a shorter prison sentence.
That group called for suspensions of up to three years for trainers and veterinarians whose horses fail a steroid test, but the authority revised the penalties, capping them at a 60-day suspension for first-time offenders.
But now, Chinese authorities have revised it, and acknowledged the existence of the new gulag, though in opaque language.
The authorities also revised their description of Ms. Brody's vehicle, which they had initially said was a Jeep Cherokee.
The epidemic ebbed only when authorities again revised infant-feeding guidelines: keep breast-feeding, they urged, while simultaneously introducing small amounts of gluten.
Nepalese authorities continually revised the number of dead upwards a day after the Himalayan country was shaken by a magnitude 7.8 quake that wrecked houses, flattened centuries-old temples and triggered avalanches on Mount Everest.
In New York City, the authorities have revised the health code to make sure they can legally quarantine people not just for known diseases but for suddenly emerging ones that present a major health threat, said Dr. Marci Layton, who is the city's assistant commissioner of communicable disease at the Department of Health and Mental Hygiene.
