Originally Posted by ToiletDuck

I agree 100% but read the NTSB reports and when there's an issue involving fatigue they all end with something along the lines of "The pilot failed to notify the company that he/she was unfit to fly". There is always an option for you to not get in that cockpit. If the company is willing to persecute you because of that then you need to get the FAA involved. If they're willing to break that rule they'll probably break others. It is your legal obligation to not fly if you're fatigued or sick. If you still do so then I'm afraid to say it's your fault. I've never hesitated to call sick. Tore my rotator cuff in the middle of a trip and left right then and there. In MSP once we waited over an hour for a hotel van and the capt made a call saying if they didn't move the departure time we'd be fatigued. The tools are there it's up to you as the pilot to make use of them. The company might not be happy and might want an explanation but you still get to make that call. If your CP or company is pressuring you then you contact the FAA immediately. There's a reason all of those conversations are legally required to be recorded. Don't be strong armed!

Let them work on whatever laws they want but for all you know it could take a long time and have little effect. But right now that medical in your pocket still gives you the protection you need for when you feel it's time to pull the plug. That medical makes it legally right. Morals have nothing to do with it.