Not necessarily. I see those labels show up on the packages containing cleaning supplies that occasionally show up on my porch. Every time I see that black and white tag, it gets my hope up.Those square shaped boxes were mummified in packing tape and had the black and white limited quantity HAZMAT labels on them used for ammo. They weren't going to magically break open, even if dropped six feet to concrete. Even so, anyone seeing them would know there's ammunition inside them.