other information and details "that the Department of Labor and Industry may direct; pay $1 as an annual registration fee; receive an alien identification card and carry it at all times; show the card whenever it may be demanded by any police officer or any agent of the Department of Labor and Industry; and exhibit the card as a condition precedent to registering a motor vehicle in his name or obtaining a license to operate one. The Department of Labor and Industry is charged with the duties of classifying the registrations for "the purpose of ready reference," and furnishing a copy of the classification to the Pennsylvania Motor Police. Nonexempt aliens who fail to register are subject to a fine of notmore than $100 or imprisonment for not more than 60 days, or both. For failure to carry an identification card or for failure to show it upon proper demand, the punishment is a fine of not more than $10, or imprisonment for not more than 10 days, or both.
Our conclusion is that appellee is correct in his contention that the power to restrict, limit, regulate, and register aliens as a distinct group is not an equal and continuously existing concurrent power of state and nation, but that whatever power a state may have is subordinate to supreme national law. We proceed therefore to an examination of Congressional enactments to ascertain whether or not Congress has acted in such manner that its action should preclude enforcement of Pennsylvania's law.
The problems associated with burdening federal resources are even more acute when considered in light of other state laws similar to this provision. (See Pl.’s Mot. at 31-32 (citing to a newspaper article stating that at least 18 other states are considering parallel legislation).); see also North Dakota v. United States, 495 U.S. 423, 458-59 (1990) (Brennan, J., concurring in plurality opinion in part and dissenting in part) (collecting cases where burden of state regulation on federal government was amplified by aggregate potential of multiple states following suit).