If a state enacts stricter hazardous waste requirements than federal rules, who enforces those state requirements?

• A. Federal EPA
• B. Local municipalities
• C. International bodies
• D. State agencies

Answer: (D)

When a state adopts stricter hazardous waste rules than the federal standards, enforcement is carried out by the state’s environmental or natural resources agency. States with primacy under RCRA are authorized to administer and enforce their own hazardous waste programs within their borders, including inspections, permits, and penalties. The federal EPA still oversees and can enforce federal requirements, but the day‑to‑day enforcement of the stricter state rules falls to the state agency. Local municipalities may handle local permitting aspects, but the primary enforcement of state‑level rules is not done by them. International bodies have no role in enforcing U.S. hazardous waste regulations.