"unless revised" is correct and usable in written English.
You can use it to indicate a condition or an exception to a current statement. For example: "The regulation remains in effect unless revised by the governing body."
Unless revised, that rule would require the companies to either seek a rarely granted waiver or sell the newspapers or stations when their broadcast licenses come up for renewal.
Yet, unless revised, the TTP will reduce tobacco tariff rates to zero and provide new rights to tobacco companies, pitting global public health in developing countries against the deep pockets of an industry that sells products known to cause serious health risks, including cancer and death.
Unless revised radiation protection practices can somehow monitor all other physical stresses experienced by an individual, the impact on risk of a low dose can never be certain.
In August, Secretary of State Colin L. Powell said Japan would be unable to fulfill the role of a permanent member of the Security Council unless it revised Article Nine.
Guy Verhofstadt, the leader of the smaller Liberal group, urged MEPs to block the proposal unless Turkey revised its anti-terrorist legislation, which, he said had been used "in a brutal clampdown on Turkish and foreign journalists by the Turkish government".
Health plans in place before it became law in 2010 are exempt, unless they are revised in some way.
"The new constitutional provisions are very vague, and won't mean much unless laws are revised to conform with them," said He Weifang, a professor at the Beijing University law school.
Our forecast for June employment, which currently calls for a net 150,000 payroll increase and an 8.1% unemployment rate, may be too upbeat and will need to be revised unless next week's data on unemployment insurance claims and readings from upcoming business surveys improve.
The Chemical Safety Improvement Act should not be approved unless it is revised to improve existing safeguards, or at the very least not weaken them.
According to the Tax Policy Center, a research group, unless Congress revises the law by Jan . 1 the number of estates affected in 2011 would increase to 44,200 next year from 5,500 in 2009.
So there could not be worlds at which both A and ¬A are true, unless we revise the semantics of negation.
