Why is this concept used in hazardous waste remediation?

Hazardous Materials Management
Discuss three waste minimization strategies that could be used by a small business classified as a small quantity generator. Provide examples for each strategy.
Discuss the relationships between RCRA, CERCLA, SARA, and EPCRA. Why do you think there are so many different laws governing hazardous materials and hazardous waste?
What should prospective buyers of commercial property do tin order to protect themselves from liability under CERCLA?
Explain the concept of Risk-Based Corrective Action (RCBA). Why is this concept used in hazardous waste remediation?
Your company has a refrigeration system that uses anhydrous ammonia (CAS registry #7664-41-7). The system is going to be replaced, and the ammonia on-hand is to be discarded. Is this disposal subject to RCRA Subtitle C regulations? Explain how you reached your decision.
What are some important considerations for selecting a hazardous waste transporter? What might be some of the consequences of making a poor selection?