Originally Posted by Short Bus Drive

Yep, have to comply for company reasons, not FAA reasons.
No CFR says you have to have them in order, or in the book.
And the FOM is an accepted manual, not approved. There's a difference.
Approved manuals are just as regulatory as the CFRs.
Like reading in the cockpit. Nowhere in the CFRs does it state you can't read at cruise. Company policy may state so, but no CFR.
Like at UAL/ CAL now does not prohibit reading...