Problem is the laws have been changing, but no-one is paying websites like those to keep up! I also hold a CDL, and let me tell you, there have been a LOT of changes THROUGHOUT the country since I actually used it regularly! I looked them up recently to do some studying up and learned quite a bit, and corrected a lot of information that was being tossed around here. Best thing I can tell you to do is go look up the regulations yourself. Many are on-line, and you'll find at least your state's in the local library if not others too. In all my years on this planet, I can tell you not to rely on what's told to you by a DMV/MVA agents or officers, read the facts for yourself.
Don't know what you do, but what's been a nice thing about DOT physicals for me is that they're nothing compared to those for HAZWOPER, which my final career requires, and it only takes checking off another box to get my current card during my regular physicals.