Sentence examples for are required before from inspiring English sources

Visas are required before travelling.

However, systemic investigations are required before clinical utility of the autoantibodies in diagnosis or prognosis.

However, further data are required before stronger conclusions can be drawn.

Zoning changes and approval are required before work can begin.

State and federal regulatory approvals are required before the merger can become final.

But readers should not think that spectacular elements are required before a wrongful conviction can occur.

The trials are required before the Food and Drug Administration reviews the drug for possible approval.

Rigorous experiments and risk assessments are required before any introduction can occur.

Multiple environmental reviews and permits are required before mining operations can begin.

Those assessments are required before the strategies can be approved for use in patients.

At least three months of testing are required before station astronauts will be allowed to drink any recycled water.