The system was to remain in effect for over 200 years.

This remained in effect until after the end of the war.

A state sales tax of slightly more than 4 percent would remain in effect.

An additional state sales tax of a little more than 4 percent would remain in effect.

The court allowed it to remain in effect until May 1993.

It will remain in effect until the end of 2007.

Sometimes they remained in effect for a week, most times only two to four days.

They introduced a new program of study, which remains in effect today.

It was supposed to last six months but remained in effect for more than two years.

By the early 1970s, none of these plans remained in effect.