What it is
Pay transparency statutes require employers of a defined size to publish a salary range in job postings, and several add pay-history and promotion-ban rules. Ranges must describe a good-faith, reasonable range, not a single number with a wide ceiling.
What to do about it: When a range is posted, negotiate from the range, not your history. A history question is unlawful in states with a ban, and salary history bans change what you should volunteer.
Plain-language description of US practice, not legal, tax, or financial advice. The paired guide carries the citations, dates, and thresholds; the state pages carry the local windows.