In South-Central Timber Development V

In South-Central Timber Development v. Wunnicke, concerning federal and state regulation of Alaska timber processing, the Supreme Court held:

A) Congress may limit interstate commerce however it wishes
B) Congress may limit interstate commerce only with approval of the affected states
C) Congress may not regulate intrastate commerce, if the effect is "inherently uncompetitive"
D) Congress may burden interstate commerce, but states may not unless allowed by Congress
E) States may place substantial burdens on interstate commerce so long as it advances a "significant state interest"