We have a policy quite similar to Daytonite's....per diems always float first. They only exception is if they told the charge ahead of time that they wanted to be considered a 'no float'...then they were just cancelled and lost pay. If there are no per diems working that day, then staff floats in turn. We also keep a log. I work on a step down unit, so we're usually the first to float to ICU or medical tele, but we also go to med surg or rehab and OCCASIONALLY the emergency department, but no one is comfortable there so if we have to go to ED we go as a 'helping hands' only. Take vitals, help the nurses out, etc. Our unit actually tries to cancel nurses if they're not needed on a particular day and ask them to trade to a day where we may be short. It eliminates our floating to another unit AND another unit floating to us on an otherwise short day. (No one really likes floating to our unit). I personally don't mind when it's my turn. All units have always been very nice to me and fair with the assignments.....and I like the change once in a while and the different experiences I get. It all works out in the end, they use a fair system...and nurses can grumble if they want, but they can't deny it's their turn thanks to the log!!