Most employers find that even Optional Practical Training (OPT) has limitations as well.

FORBES: Are We Missing the Opportunity to Ensure America's Economic Future?

Also in May, the U.S. Immigration and Customs Enforcement (ICE) posted an expanded list of Science, Technology, Engineering, and Math (STEM) degrees that enable graduates to qualify for an extra 17 months of Optional Practical Training (OPT).

WHITEHOUSE: Office of Science and Technology Policy Blog