Except for transportation by aircraft or as otherwise provided in 49 CFR 172.315, a package containing a limited quantity of hazardous materials is not required to be marked with the proper shipping name provided it is marked with the UN identification number within a square-on-point border. These Square-On-Point Markings are available with preprinted UN 3082 for Environmentally Hazardous Substances, Liquid, N.O.S. Commodity.