The end of the fiscal year is coming. If you have over 75 days of leave on the books, you'll lose part of it. Also, as of next year, you can only hold over 60 days from the previous fiscal year. Talk to your sailors now about their leave balances, so you ensure nobody loses leave.
The applicable MILPERSMAN is here:
http://www.public.navy.mil/bupers-npc/reference/milpersman/1000/1000General/Documents/1050-060.pdf
