What agencies enforce the Laws prohibiting deceptive advertising?

The primary agency enforcing laws against deceptive advertising in the United States is the Federal Trade Commission (FTC). The FTC investigates complaints, conducts research, and takes legal action against businesses that engage in misleading advertising practices. Additionally, state attorneys general can also enforce consumer protection laws at the state level, and the National Advertising Division (NAD) provides a self-regulatory forum for resolving disputes related to advertising claims.