College juniors around the globe will soon have the chance to snag a seat at Harvard Law School—with a catch.

They must first graduate and work for two years before showing up on the law campus. The school announced Wednesday that it is expanding a three-year-old pilot program that allows juniors at Harvard College to apply and gain early admission with the agreement that they work, study, complete a fellowship or conduct research for at least two years after finishing their undergraduate degrees and before starting their legal studies. Beginning in the fall, juniors from any college or university, as well as their international equivalents, are eligible for the school's Junior Deferral Program.

It's believed to be the first program of its kind at a U.S. law school, said Jessica Soban, associate dean for admissions and strategic initiatives. Harvard does not have a set number of juniors it's looking to admit next year, she added, saying the size of the program will depend on the number and quality of applicants.