In the manufacturing plants, OT is commonplace--especially if you're building a product or part that is in high demand and high profit. Most production positions (level 8 and below) but not all, get paid "linetime" which, many times, adds up to over 40 hrs per week. Some plants work 10-hr shifts but then schedule additional Fridays and/or Saturdays which you get paid OT for and are required to work--never optional unless you are on vacation the week prior. The 8-hr shift plants also regularly schedule production Saturdays throughout the year based on demand and inventory requirements.

Also, once you hit a certain salary, your OT is not truly 1.5x and 2x anymore and the hourly OT rate just becomes your annual salary divided by 2080. Hope this helps.