Lawyer advertising rules by state (50 states and DC)

Plain-English summaries of lawyer advertising rules for the 50 US states and DC: ad filing, required ad content, solicitation waiting periods, claims and testimonials, referral and lead-generator rules, other languages, call-recording consent, texting law and privacy law. Each of the 459 rule cells is sourced and marked P (primary source, 426), S (secondary source, 0), D (ABA model default, 32) or U (open question, 1). Data version 2026-10-25. Canonical page: https://probativegrowth.com/resources/lawyer-advertising-rules-by-state/. Published by Probative Growth (probativegrowth.com), a marketing agency for US law firms; not a law firm. Not legal advice. Note: the JSON file in this record carries releaseVersion "1.3.1", a labelling slip at build time; this record is release 1.4.0 and the data are identical.