Exempt Employee. An employee exempt from the overtime policies of the University due to the nature of the work, education requirements of the position and salary range. These employees are paid an annual salary and are not customarily eligible for overtime pay.
Non-Exempt Employee. An employee covered by the overtime policies of the University.
http://www.admin.mtu.edu/admin/boc/policy/ch3/ch3p1.htm

Exempt employee: An employee not covered by FLSA overtime rule protection.
Nonexempt employee: An employee covered by FLSA overtime rule protection.
Overtime: The FLSA determines overtime is any time a worker works more that 40 hours in a week. Individual state laws can have their own overtime laws, but all must accommodate workers who work more than 40 hours a week.
http://www.resource4flsalaw.com/wageandhourglossary.html

Exempt Employee - An employee who, because of his/her position duties, is exempt from the overtime provisions of the Fair Labor Standards Act (FLSA).
Non-Exempt Employee - An employee who, because of his/her position duties, is not exempt from the overtime provisions of the Fair Labor Standards Act (FLSA). Non-exempt employees must receive compensatory time off or overtime pay at a rate of time and one-half for any time worked in excess of 40 hours in a work week.
http://www.utsa.edu/hr/emplcompglossary.cfm