Head v. New Mexico Board of Examiners in Optometry…
“ The nature of the regulatory power given to the federal agency convinces us that Congress could not have intended its grant of authority to supplant all the detailed state regulation of professional advertising practices, particularly when the grant of power to the Commission was accompanied by no substantive standard other than the 'public interest, convenience, and necessity.' [10] The Solicitor General has conceded that the power of license revocation is not a plausible substitute for state law dealing with 'traditional' torts or crimes committed through the use of radio. ”
