Do
Ursacks meet bear resistant requirements for the areas you plan to travel?
In NY, no, the ursack since it is not solid and non-pliable material does not meet the requirements where a bear resistant canister is mandatory:
Only canisters successfully tested by the IGBC pass the certification test. IGBC Certification: Products that successfully withstand the bear testing for a specified duration are certified as bear-resistant by the Interagency Grizzly Bear Committee (IGBC).
Using a bear-resistant canister is the most effective way to prevent bears from becoming emboldened to obtain food from back-country campers.
dec.ny.gov
Selecting a Bear-Resistant Canister
Bear-resistant canister means a commercially made container constructed of solid, non-pliable material manufactured for the specific purpose of resisting entry by bears.
Tested and approved bear-resistant canisters can be purchased or rented from many local, national, and web-based outdoor recreation retailers. However, black bears in the Eastern High Peaks Wilderness have regularly defeated bear-resistant canisters made of clear plastic. Campers are encouraged (although not required) to use another type of bear-resistant canister to prevent the loss of food. When selecting a bear-resistant canister consider the following:
Has the canister passed rigorous testing with live bears?
Is the canister made of solid, non-pliable hard plastic or metal with smooth, rounded edges and no handles?
There shouldn’t be any features that a bears' claws or teeth could grip under or that would allow a bear to carry the canister away.
Is the canister large enough to store all scented items for the entire duration of your trip?
Canisters typically are 8 inches by 12 inches in size and hold up to 5 days of food for 1 person, when properly packed.
Does the canister have a lid that is easy to remove and secure? This will help ensure scented items can be easily secured after each use.
Bear-resistant canisters are required for all overnight recreators in the Eastern High Peaks Wilderness from April 1–November 30.
adk.org