Every Unite branch and constitutional committee has until 15th February to submit one motion on general policy for consideration at the Unite Policy Conference which will take place in Brighton on 11-15 July 2016.
The paperwork circulated is here:
If you're drafting a motion, don't forget to check Unite's existing policies. There's no point submitting a motion that just repeats existing policy - it should either change policy or make new policy. It can't change the Rules of the union - that's for Rules Conference.