On June 3, 2021, the Federal Executive branch published in the Federal Official Gazette the DECREE enacting the Law for the Transparency, Prevention and Combat of Improper Practices in Advertising Contracts (the “Law”), which introduces relevant changes that impact the advertising industry in Mexico. The Law becomes effective on September 3, 2021, and is applicable to all acts, contracts, agreements, or procedures entered into between two or more of the economic agents referred to in the Law (media agencies, advertisers, and media), if an advertiser is resident in Mexico and the advertisement is disseminated in Mexico.