?邦?先?

?邦?先? （英語： Federal Preemption ）指的是在美?法律中，? ?邦法相?突的州法?无效。

?法基? [ ?? ]

“

本?法及依本?法所制定之合??法律；以及合??已???及?要??的一切??，皆?全?之最高法律；每?州的法官都?受其?束，任何一州?法或法律中的任何?容?之抵??，均不得有??一?定。

”

??《美利?合???法》第Ⅵ?第2款

正如美?最高法院在“ ???集?公司?古德案（英? ： Altria Group, Inc. v. Good ） ”的裁?中所?，?州法相?突的?邦法?“?先于”州法。

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??大?法?院 . Alan B. Morrison , ?. Fundamentals of American Law. Oxford University Press. 1996. ISBN 9780198764052 .
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Louis Henkin. Foreign Affairs and the United States Constitution . Oxford University Press. 1996. ISBN 9780198260981 .
Christopher R. Drahozal; Carter G. Phillips. The Supremacy Clause: A Reference Guide to the United States Constitution. Greenwood Publishing Group. 2004. ISBN 9780313314476 .
Ronen Perry. Differential Preemption. Ohio State Law Journal. 2011-02-29, 72 : 822?879. SSRN 1838245   . ??? |date=中的日期? ( ?助 );