Yes, ON a State by State level. We are a Republic after all and I am a believer in the 10th amendment.
Places like Montana, Wyoming and the Dakotas have little need as they do not really have the traffic issues found in the more populated areas.
IMO the safest way to implement it would be to first allow filtering in stopped traffic for a year or two then open it up to splitting. This would help other road users get comfortable with having bikes pass by in close proximity.
(When I feel it is justified for my safety, I do it anyway)