Raising this thread from the dead, because I think it is still relevant. I just turned down an otherwise good job that I think I had in the bag because the Director of Operations let it be known they operate 24/7 on call. When I pointed out it was not legal, he waffled and talked about how the regs are "not clear", and they have to do it because they are charter on demand. Basically it was like someone driving 55 mph in a 30, and justifying it by saying they were in a hurry. To all those who say following 135.267 and the associated crew rest rules means that you will have to sit in an airport for 12 hours a day, whether you have a flight or not, I would say that is not true. You can take flights that start and end at any time as long as you are notified 10 hours in advance. Or you can operate under a hybrid system where your official duty day runs from 9 am to 11 pm - BUT- if charter gets a booking outside that time, they can call and just put you in rest, and you are good to do the flight 10 hours from that point. They get a call for a customer that wants to depart at 7am, and the call comes in after 9 pm? Tell them your crew is in rest, and will be available in 10 hours, or at 9 am, whichever comes first. How many times out of all the flights a charter department does, is there a customer calling last minute, with zero flexibility, that doesn't give you any notice and wants to arrive at their destination after 11pm? 2%, maybe? If that happens and you don't have a crew who can do it legally, farm it out to another company with more options. It is really not a big enough problem to make operating illegally a routine practice. It is not going to sink your company to just follow the rules! /end rant