Which form of preemption is described as federal regulation occupying a field to the exclusion of state regulation?

• A. Express preemption
• B. Field preemption
• C. Implied preemption
• D. Conflict preemption

Answer: (B)

Field preemption occurs when federal regulation occupies an entire regulatory field, leaving no room for state law in that domain. This usually happens when Congress intends for the federal scheme to be comprehensive and to occupy the field entirely, so state rules would be incompatible or unnecessary even if they don’t directly conflict with federal rules. It’s a form of implied preemption and doesn’t require explicit language in the statute.

Express preemption relies on clear statutory text stating that state law is preempted, which is different from field preemption. Conflict preemption deals with a genuine impossibility to comply with both regimes or where the state law poses an obstacle to federal objectives. Field preemption specifically focuses on the regulatory field being taken over by federal law in its entirety.