maby the wrong post, but why not throw my two cents in..
I'm from Southern Ontario, Canada. I will be crossing the boarder soon to attend the AGD tour in Wheeling. I just got off the phone with United States Customs and apparently; as long as both the marker and compressed air tank are declared, the only thing to worry about is a longer wait.
Apparently no new regulations are planned for boarder crossings; just more thorough checks.
Sig image file size too big... MarkM
".. yes ma'am, our DSL does sux .."