Final answer:
Command-and-control regulations include environmental quality standards, emission standards, and best available technology as environmental standards.
Step-by-step explanation:
Command-and-control regulations include Environmental quality standards, Emission standards, and Best available technology as environmental standards. These regulations set specific limits for pollution emissions and/or specific pollution-control technologies that firms must use. Although command-and-control regulations have helped protect the environment, they have limitations such as providing no incentive for exceeding the set limits, limited flexibility in reducing pollution, and politically-motivated loopholes.