Assuming you do not work for a unionized employer which has a labor agreement specifying job classifications, an employer has a right to assign you to do any work for which you are qualified. Your pay does not depend on you doing a particular job. You are paid to work, and if you're assigned to do more than one type of job during your work hours, you are required to do that.
Answered on Mar 11th, 2013 at 3:21 PM