Many non-profit organizations will be welcoming new board members at their upcoming annual general meetings (AGM). New board members will need to be made aware of the organizations policies soon after accepting their positions on the board. The organization should determine which policies are going to require annual confirmations and make sure that the new board members sign these confirmations before they attend any board meetings.
What I mean by annual confirmation is a form signed by the board member which states that the board member has read and understood the policy. The policy is generally attached to this confirmation letter. In my opinion, conflict of interest and confidentiality policies would be the top two policies that I would want to see covered by annual confirmation letters. Of course, the word annual assumes that all of the board members sign confirmation letters each year. Use the arrival of new board members as the reminder to get the confirmations signed by all of the board.