Abstract: This outstanding author team presents administrative law as a vital force in policymaking, law enactment, and politics. Look for these key features of the new edition: • Addition of important new cases on recess appointments, Chevron Step Two, “Seminole Rock” deference, occupational licensing, and FOIA Exemption 2. • Substantial enrichment of materials on formal adjudication under the APA. • Splitting of the policymaking chapter into two chapters (choice of policymaking instruments and rulemaking) for greater clarity and teaching flexibility. • Updating and streamlining of the materials on licensing. • Presentation of important classic and secondary cases in squib format. • Substantial streamlining, condensing, and reorganizing of background notes.