The phrase "obtain clearance from" is correct and usable in written English.
You can use it to describe the process of getting approval from a higher authority to proceed with something. For example, "Before proceeding with the project, the team needed to obtain clearance from their supervisor."
Each deal and each foreign owner would have to obtain clearance from the government.
Before returning a reporter's call on a particular stock, he said, he first has to obtain clearance from the legal department.
A section of the act requires states and other jurisdictions with a history of racial discrimination to obtain clearance from the Justice Department or a court before changing voting procedures.
In his appeal court ruling last year Lord Phillips, Master of the Rolls, said that he had "difficulty" accepting the assertion of the attorney general that courts could make it a criminal offence for a newspaper to fail to obtain clearance from him before publishing material to which he might not object.
Although Avalon is a non-towered airport, it is necessary to maintain communication and obtain clearance from Unicom for arrivals and departures.
This statement implies that investigators have to obtain clearance from an external and independent body of reviewers before any kind of research project is started.
Orbitz recently obtained clearance from the Transportation Department.
She said she had obtained clearance from the Manhattan district attorney to speak with Mr. Slovis.
Even after a week, major Western relief agencies were being delayed for up to two days in obtaining clearance from Delhi to fly chartered planes loaded with tents, medicines and food into Bhuj's airport.
By obtaining clearance from California's Department of Motor Vehicles, Apple is signaling that it is serious about pushing forward with self-driving technology despite reports last fall that it was scaling back its ambitions.
Aquino worked for a Pearson affiliate before joining the district, but he has insisted that he obtained clearance from district legal staff before participating in discussions with his former employer.
