Since you can't use your Garmin you need to think outside the box. Strap I phones to each dog. Then you can run a app to locate them using a gps system. You could also set their ring tones to mimic a hawk scream which will serve two purposes. First it will help you locate them in heavy cover. Second that hawk scream should scare the heck out of any game birds and force them to hunker down in cover until you get there to shoot them.

The only down side to this is if you can't get a strong signal out in remote areas. Perhaps strap a satellite phone to one dog and create a mini hot spot that all the dogs could use as a network. But even this would be easier than getting any government to make rapid changes without years of studies or multiple hearings.