Nevada and California also passed a law requiring the same. This question is for research purposes
Family Law Attorney
Not in my opinion.
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Military Law Attorney
No. California is one of several states with different and stricter emissions standards on auto's. Not found to be unconstitutional.
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41 A.L.R. Fed. 2d 1 (discussion of dormant commerce clause cases)
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Constitutional Law Attorney
Bibb v. Navajo Freight Line, 359 U.S. 520 (1959), helps clarify the circumstances in which these regulations will be sustained. There, Illinois required tractor trailers to be equipped with a particular design mud flap. The design commanded by state law was such that trucks legal in Illinois would be illegal in Arkansas which had a differing required design mudflap.
Take a look at the decision there, and then follow the commentary trail after it.
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