They are currently approved for Inyo NF, and other areas of the Sierra, specifically NOT approved for all of Yosemite and 3 areas in SEKI. I'll look forward to using them in areas with non-habituated bears. There's a bear in the Adirondacks that has figured out how to open a Bear Vault, and I've heard of bears smashing open canisters on rocks. I've had my heavy Garcia poked around and licked, but never really moved far or tested.
_________________________
Charlie