I have recently been asked to work more hours due to the loss of other employees. My job consists of many miles of driving between facilities however drive time is not always included. My contract did state that I will be paid a certain amount averaging 40 hours a week. A year and a half later they are telling me that I should be working 45 hours a week. My hourly rate and what I was stated a yearly wage adds up to 40 hour work weeks. Are they breaking my contract?

"My contract did state that I will be paid a certain amount averaging 40 hours a week." With the word averaging in the wording of the sentence, that could be your employers out. You probably need to take the original contract to a contract attorney and verify with him/her. I would also check with the State Labor Department concerning the mileage reimbursement good luck

Contract sounds vague, the trouble is if you are "salary" then they can make you work all the want, and if the pay is merely based on 40 hours, actual work hours may be more.

Now most states and the federal government has a min amount that has to be paid to be salary,

Contract and hourly rates rarely come up together in the same conversation. Hourly or salaried with a contract is the way it normally goes, so which are you?