- Commercial Speech. Generally, commercial speech is protected. However, it may be regulated as to false or deceptive advertising as well as harmful or illegal products.
- TEST: For unprotected commercial speech
Central HudsonTest. Under Central Hudson, in order to be valid, the regulation must directly advance a substantial government interest and it must be narrowly tailored to further that interest.
- Harmful but lawful products advertising (vice advertising)
- Solicitation. Court balances homeowner’s right to privacy with First Amendment right of commercial speech. Then ask whether the regulation in question is narrowly tailored.
- Ordinance prohibiting all door-to-door solicitation = unconstitutional.
- Ordinance prohibiting commercial solicitation without homeowner’s consent = UPHELD. Alternative channels of communication were left open.
- True commercial speech that inherently risks deception can be prohibited.
- Government may prevent professionals from practicing under a trade name.
- The government may prohibit an attorney, in person, from soliciting a client for profit.
- However, if attorney is offering free representation, that’s protected.
- If attorney sends letters to prospective clients, that’s okay.
- The government may not prohibit accountants from in-person solicitation of clients for profit.
 Note that strict scrutiny is used for protected commercial speech.