If IACUC members have conflicts of interest in reviewing a certain protocol, they may not vote on that proposal, and it is a best practice for them to:

Remain in the room to contribute to deliberations but not formally vote on the proposal.

Remove themselves completely from the IACUC meeting room during IACUC deliberations and voting on that protocol.

Remain in the room during deliberations but keep silent.

Remove themselves completely during voting but participate in deliberations of the protocol.