The state began requiring monthly blood tests in May, 1986.

Last year, Phoenix began requiring each of its high schools to focus on such literacy strategies.

By late 1998, the Center began requiring extra space, as many of the programs had grown beyond the founders' expectations.

Still other faculties have begun requiring more study of ethics.

Many colleges have begun requiring courses in specific academic areas, including the effects of modern technology on society.

The department began requiring permits for new construction and alteration in 1866.

Federal regulators began requiring that air bags deploy quickly in the 1980's.

Today, it's closer to 10 percent because three years ago administrators began requiring parents' waivers.

Only in the past decade has the federal government begun requiring colleges to post statistics about transfer students.

Banks began requiring terrorism coverage on loans for real estate and construction.