Naxx - Progress (players in roster)

What are the rules in terms of total number of unique characters allowed in a log for a progress raid for Naxxramas?

I understand there is a cap of 46 people in a speed run, but does that limitation apply to progress raids, Or are we able to run 50 or 60 people, for example, without an issue?

Progress is (and has always been) anything goes. There are no rules. Just kill the boss :slight_smile: