Haha, well Ester can always assist in that area. She knows the rules of being kosher, and likely of halal since she is from Isarael. How much will religion play into their daily life? I can imagine there are people from all walks of life and beliefs in gods or lack there of. That might become an interesting subject aboard such a close area. If people cling to their beliefs and find hope in them or if they fall out of faith because of the entire Change event, etc. I'm positive the laws of the ship are secular, probably based in the US military code of conduct.