The phrase "approved sections" is correct and usable in written English.
It can be used when referring to specific parts of a document or text that have received official approval or validation.
Example: "Please ensure that you only reference the approved sections of the report when preparing your presentation."
Alternatives: "authorized parts" or "validated sections".
The Foggy Bottom Travel Agency has in recent years offered a lot of travel ideas, but its new Big Brother Excursion Plan (also known as Frances Knight Flight), in which you are under friendly surveillance by your own country-men...is a good one - a 21-Day Take-It-Easy Plan, which restricted travel to certain approved sections of the globe.
UPDATE: BP has announced that it will fund the six approved sections of the sand berm project, estimated to cost $360 million.
Despite having many entrances, foreign visitors entered approved sections accessed via a small shop front in Qianmen, south of Tiananmen Square, at 62 West Damochang Street.
An already approved section reveals Arctic ecosystems and warm water coral reefs are already experiencing "irreversible regime shifts".
Many breeds have contributed to the foundation bloodstock of the New Forest pony, but today only ponies whose parents are both registered as purebred in the approved section of the stud book may be registered as purebred.
The tunnels of the approved section continued east of Charing Cross under Strand almost as far as Aldwych station, but no work at Aldwych was undertaken and they were used only as sidings.
The cabinet has approved other sections of the barrier by large majorities.
The authority approved two sections of the route which run to Cribbs Causeway and Emersons Green.
Ms. Tyler and her son shared a small room in a shelter for almost a year, until she was approved for Section 8 housing in the South Bronx.
The language, approved as Section 586 of the voluminous military authorization bill for 2005, would prevent the Pentagon from changing its insurance rules for at least a year after Congress receives the pending study by the Government Accountability Office.
Once in custody, the lack of doctors, who must be approved under section 12 of the Mental Health Act, to carry out the further assessments which usually take place out of hours, causes further delays.
