If only things were so simple,
so black-and-white. You will find that many places have catch-all phrases such as "no digging", "no disturbing", "no removing objects", etc.
Some places apply this to metal detecting, others don't. I would advise just asking local authorities before digging in cases where you detecting (and digging) could easily be interpreted as illegal.
Then you'll get your 'yes' or your 'no' and either way you can go about your business without looking over your shoulder.
Contrary to what Tom is telling you, just because it doesn't explicitly say "NO METAL DETECTING" doesn't necessarily mean (presto!) it's legal. In the same way a "Do not enter the water" law would obviously cover swimming without mentioning it specifically (unless you've been given the go-ahead by local authority despite such wording).
Of course if you're looking up the laws for yourself and it says detecting is allowed or makes no mention of digging, removing, disturbing, etc. then I'd just go for it!
HI stew,
The United States is a nation of laws. And laws must be written...you know, IN BLACK AND WHITE. Since you clearly do not understand how the legal system works in the US, I'll try to be brief: IF IT'S NOT ILLEGAL...IT'S LEGAL. And conversely: IF IT LEGAL...IT'S NOT ILLEGAL.
To help you understand think of it this way: IF IT'S BLACK...IT'S NOT WHITE, IF IT'S WHITE...IT'S NOT BLACK.
As far as getting a 'yes or no by asking', I'd personally look over my shoulder if I got a YES, IT"S OK TO DIG when the law says 'NO DIGGING'. And BTW, TOM is right when he say's 'it's ok to MD when MDing is not specifically banned. You are confusing MDing with destruction of public property, or digging where digging is banned, or recovery of personal property where it is banned. I know, it's convenient to confuse the different actions in support of your agenda.
I don't believe you will find any laws that specifically allow MDing on public lands. You see, MDing
is allowed on public lands unless it's NOT ALLOWED by law. This is why permission on public lands is not necessary and you might refer to the Code of Ethics posted here on this forum if you doubt this. Seems simple and straightforward to me. You might find some posted rules which might say MDing allowed, but they would NOT BE LAWS, just clarification that no laws have been passed to prohibit MDing on that public land.
So to sum up, I'd have to say in my opinion, your advice is just wrong. Since nexon1 (the OP) asked for help "...finding the best starting place when determine MD laws for the different levels of Government property, including local, state, and federal lands?", you might want to try focusing on the topic and not worry so much about your agenda.
Since I don't know "the best starting place", I just suggest to nexon1 that wherever he/she wants to MD, they should research whether the land is public or private, and if PUBLIC...research the laws that have been passed and published IN BLACK and WHITE that apply to that specific public property and obey the law.
If MDing has not been prohibited by law, then it's allowed.