William O. Douglas,
Public Utilities Commission of California v…
“ In the absence of an express federal policy to nullify state regulation, this Court's decisions make clear that the fact that the Government may not henceforth receive more advantageous shipping rates in California than those applicable to other intrastate shippers is not sufficient by itself to vitiate this state statute. The fact that the economic incidence of state price regulation or taxation falls upon the Government no longer alone gives rise to an implied constitutional immunity from such regulation. ”
