(a) For purposes of this section, the term "container" means any portable device into which waste is placed for storage, transportation, treatment, disposal, or other handling, and includes the first enclosure which encompasses the waste.
(b) All hazardous waste shall be placed in containers for disposal, except as the Commission shall provide for by rule. The Commission shall adopt standards for the design and construction of containers for disposal. Standards for containers may vary for different types of waste. The standards for disposal containers may supplement or duplicate any of the performance or engineering standards for hazardous waste disposal facilities required under State or federal law; however, the performance or engineering standards for hazardous waste disposal facilities are separate and cumulative, and the performance or engineering standards for hazardous waste disposal facilities and containers may not substitute for or replace one another.