go to http://www.op.nysed.gov/prof/clt/ for New York state licensing which is accepted in most of the states as the standard license for Medical Technologist. I don't know if your friend meets all the requirements for the License even though he has a M.Sc from Nepal. Besides the degree itself, he also needs to complete many laboratory hours.I'm not sure about the exact hours, so I would suggest you to check in the above link.