why do tank mixtures need to be included on a label
All tanks used to accumulate hazardous wastes must be marked with the words Hazardous Waste. The tanks must be labeled to identify the contents of the waste and the label must include the appropriate hazardous waste codes listed in 40 CFR 261. The accumulation start date (the date the first wastes were placed in the tank) must also be on the label. In addition, tanks are required to meet the standards in 40 CFR 265 Subpart J for accumulation in tanks. These standards are complex and fall into several categories. They include: assessment of tank integrity; design requirements for new tank systems; containment and detection of releases; general operating requirements; tank inspections; and responses to leaks and spills.