The program requires at least two years of course work.

And plans for several employers usually require 10 years of service.

He doesn't have the right experience to run for president which requires years of preparation.

China requires nine years of education and India just eight.

Yet it's hard to see why those matters, already well considered, require three more years of planning.

It used to require years of legal fights for the right to market the technology at all.

Later the requirements were reduced to require only two years of college education.

Such projects usually require 7 to 10 years from exploration to production.

It requires at least three academic years of full-time study.

The system is so complex that those who now manage it require more than two years of training.