If you have any more reserve days this month they will automatically put PB and/or PR (Partial Reserve) on those days - you don't have the option to defer them to next month if you have RES days remaining this month.

If you don't have enough RES days remaining they *should* put the remainder in your Payback Bank, which is viewable on your timecard. This is a manual process, so you need to watch it and make sure they process it correctly - I have caught several mistakes before.

Once you have PB days in the bank, there are a variety of ways to use them to your advantage. Denny and I have posted some of the detailed methods to maximize their value (try the search box.) It all depends on what you're trying to do (ie more time off, more $, or more potential to make $ like opening your sked for more GS availability...)

Mutual agreement with the company basically means days you are wanting to use your PB days in a future month must have greater reserves available vs required - similar to a PD or X-day move.

Be sure to do your research wrt PB day strategies if it works out that way. Also check out the DALPA Scheduling Reference Handbook (see page 98) for a good explanation of how you can maximize the return on a PB day.