Is the 1995 'Proclamation to the World' on Families by the church Doctrine, Policy, or just advice? This came up in Sun. School today and I was hoping to get more opinions or citations on it's status.  

My understanding was that to become a Doctrine it had to be approved by 1st presidency, quorum of the 12, the general authorities and then presented to the church in general conference for a sustaining vote.   Am I wrong?