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1. Preemption (military): Preemption (military) : An attack launched against an opponent that the attacker believes intends to directly attack him in the short term; sometimes called a spoiling attack. (Military) [100%] 2023-09-11
2. Preemption Line: The Preemption Line (also spelled Pre-Emption) divided the aboriginal lands of western New York State awarded to New York from those awarded to Commonwealth of Massachusetts by the Treaty of Hartford of 1786. It was defined as the meridian ... [100%] 2024-01-06 [History of Massachusetts] [Former regions and territories of the United States]...
3. Preemption, Illinois: Preemption is an unincorporated community and census-designated place in Preemption Township, Mercer County, Illinois, United States. As of the 2020 census, it had a population of 254. [100%] 2024-01-06 [Census-designated places in Mercer County, Illinois] [Census-designated places in Illinois]...
4. Implied preemption: Implied preemption exists where the scope of the federal law at issue "indicates that Congress intended federal law to occupy the field exclusively" or where state or local laws conflict with federal laws. The effect of implied preemption is to ... [100%] 2023-02-17 [United States Supreme Court Cases] [Preemption]...
5. Federal preemption: Federal preemption is the legal doctrine that laws of the United States supersede and trump state and local laws. The basis for preemption is the Supremacy Clause in the U.S. [100%] 2023-02-17 [Legal Terms]
6. Refutational preemption: In inoculation theory, refutational preemption consists of “specific content that receivers can employ to strengthen attitudes against subsequent change.” Drawing on McGuire & Papageorgis, Pfau, et al. define the refutational preemption, or pretreatment, step of the inoculation process: "The theory posits ... (Social) [100%] 2024-01-06 [Communication] [Propaganda techniques]...
7. FDA preemption: FDA preemption is the legal theory in the United States that products licensed or otherwise approved for use by the Food and Drug Administration (FDA) are exempt from various state efforts to preclude their use. It has been raised as ... [100%] 2024-03-03 [Food and Drug Administration] [United States tort law]...
8. Traffic signal preemption: Traffic signal preemption (also called traffic signal prioritisation) is a system that allows an operator to override the normal operation of traffic lights. The most common use of these systems manipulates traffic signals in the path of an emergency vehicle ... (Traffic light override system) [81%] 2025-01-19 [Emergency vehicles] [Intelligent transportation systems]...
9. Firearms preemption conflicts between state and local governments: This article does not receive scheduled updates. If you would like to help our coverage grow, consider donating to Ballotpedia. [50%] 2025-08-11 [Preemption conflict storylines] [Marquee, overview page, 2020]...