NY requires it in original containers or powder horns, in a wood box, walls nominally 1/2" thick, painted red, labeled "low-ex" in white or yellow letters 4" high, kept on 1st floor or in basement within 10 feet of an exterior entry. Maximum of 5 lbs, box is not to contain other combustibles (ie smokeless or caps.)
So, yes, know your laws, and follow them, for safety and liability.
So, yes, know your laws, and follow them, for safety and liability.