40 CFR §267.198

1. (a)You must not place hazardous wastes or treatment reagents in a tank system if they could cause the tank, its ancillary equipment, or the containment system to rupture, leak, corrode, or otherwise fail.
2. (b)You must use appropriate controls and practices to prevent spills and overflows from tank or containment systems. These include, at a minimum:
   1. (1)Spill prevention controls (for example, check valves, dry disconnect couplings).
   2. (2)Overfill prevention controls (for example, level sensing devices, high level alarms, automatic feed cutoff, or bypass to a standby tank).
   3. (3)Sufficient freeboard in uncovered tanks to prevent overtopping by wave or wind action or by precipitation.
3. (c)You must comply with the requirements of § 267.200 if a leak or spill occurs in the tank system.