For the US, every state has their own rules, as well as individual sites on what you can do, how you can do it. If you're on a Federal site, usually it's a mix of state rules and Federal rules.
Part of the responsibility is to know those rules and follow them. Yea, it can get confusing and hard, but that's part of the deal, so gotta be done. Much better to pick up the phone and call or shoot an email and ask questions, than to not and get a visit...
In the US, conservation officers don't mess around. They definitely can be on the unpleasant end of FAFO.
Nice to see that Marc's kept this up there for free. It's a great version if folks don't have the originals and/or want to play a great game!