Download or read book Attorney General Opinion No. 1993-044 written by Robert T. Stephan and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With one limited and inapplicable exception, Congress has preempted the area of railroad safety including drug testing. Accordingly, state and local law enforcement officials may not conduct drug testing of railroad employees following a grade crossing accident. Cited herein: U.S. Const., art. VI, cl. 2; 45 U.S.C. sec. 421, 434.