depends on the college offering them but MIS,MBA are non-STEM degrees so I suspect it would be a 1yr OPT.
OPT = Optional practical Training - a Student-Visa dependent status that allows you to stay in the US and work. Applicable only after you graduate.
what is OPT ?
Yes - STEM courses - Science,Tech, Engg and Math MS courses get you a 2.5yr OPT whereas an MBA is only a 1yr OPT. Also note that if you use OPT during MS you will not get OPT after MBA. You can use OPT only once at any degree level so if you use it for MS, then the next time you can get OPT will be for Ph.D.