Leonidas receives a flyer from a U.S. federal government agency announcing that a new administrative law will affect his business operations. Where should he go to find the text of the law?

The Code of Federal Regulations (CFR) contains the text of all administrative laws promulgated by federal agencies. The U.S. Code contains criminal and civil law. Supreme Court rulings contain interpretations of law and are not laws themselves. The Compendium of Laws does not exist.