In this lesson, we explore issues relating to the United States Supreme Court's landmark decision in Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837 (1984). In that case, the Court suggested that courts should "defer" to an administrative agency's interpretation of its governing statute under certain circumstances. The lesson examines the concept of deference, its consistency with other legal principles (e.g., the Court's landmark decision in Marbury v. Madison), the meaning and limits of deference, and the various types of deference (e.g., Skidmore deference as contrasted with Chevron deference). The lesson is intended for students who have studied these issues in class and who wish to refine and expand their knowledge.