{"argument_date":"2004-01-14T00:00:00Z","arguments":[{"argument_date":"2004-01-14T00:00:00Z","heading":"What happened at the argument","official_detail_url":"https://www.supremecourt.gov/oral_arguments/argument_transcript/2003","official_transcript_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","paragraphs":["Mr. Phillips cited the 1967 Clean Air Act.","Mr. Olson warned of a patchwork of state rules.","Chief Justice Rehnquist closed the argument session."],"reargument":false,"sequence":1,"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-17","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 5-17"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 55, lines 17-21","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 55, lines 17-21"}]}],"caption":"Engine Mfrs. Assn. v. South Coast Air Quality Management Dist.","case_history":[{"changed_at":"2026-08-29T20:06:30.585491Z","explanation":"An official oral-argument transcript was verified.","status":"argued"},{"changed_at":"2026-08-29T20:06:30.622221Z","explanation":"An official oral-argument transcript was verified.","status":"argued"}],"case_status":"argued","dek":"Car makers argue federal law blocks state vehicle bans. California officials claim local rules fit within federal limits.","dek_sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}],"dispositions":[],"latest_court_document_date":"2004-01-14T00:00:00Z","maturity":"official_transcript","official_detail_url":"https://www.supremecourt.gov/oral_arguments/argument_transcript/2003","official_disposition_urls":[],"official_docket_url":"https://www.supremecourt.gov/docket/docketfiles/html/public/02-1343.html","primary_docket":"02-1343","revisions":[{"correction_note":"Rewritten to the concise citizen-facing editorial standard.","created_at":"2026-08-31T15:59:36.826939Z","maturity":"official_transcript","revision_number":1},{"correction_note":"Migrated to the dated official Court activity contract without model use.","created_at":"2026-09-05T03:22:24Z","maturity":"official_transcript","revision_number":2}],"schema_version":"1.1","sections":[{"heading":"What this case is about","paragraphs":["This case tests state power over vehicle sales. the sides that brought the case seek a federal preemption ruling. the opposing sides defend their local emission rules."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}]},{"heading":"How the case got here","paragraphs":["The Supreme Court heard oral argument in this case on January 14, 2004."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-17","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 5-17"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 55, lines 17-21","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 55, lines 17-21"}]},{"heading":"What each side wants","paragraphs":["the sides that brought the case want the Court to strike down the state rules.","the opposing sides want the Court to keep the state rules valid."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}]},{"heading":"What each side says","paragraphs":["the sides that brought the case argue federal law preempts state vehicle bans.","the opposing sides argue their rules fit within federal law."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}]},{"heading":"What the justices asked","paragraphs":["Does federal law block state vehicle bans?","Can states set unique vehicle standards?"],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 55, lines 17-21","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 55, lines 17-21"}]},{"heading":"Why it matters","paragraphs":["This dispute shapes state control over car sales. It defines the boundary between federal and state power. It affects how states manage air quality."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}]},{"heading":"What happens next","paragraphs":["This article currently covers the argument record. Use the official docket link for later case activity."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-17","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 5-17"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 55, lines 17-21","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 55, lines 17-21"}]}],"slug":"2003-02-1343-engine-mfrs-assn-v-south-coast-air-quality-management-dist","term":"2003","title":"Can states ban specific car models?","title_sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 20, lines 19-43","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 20, lines 19-43"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 28, lines 35-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 28, lines 35-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 19-1","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 3, lines 19-1"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 37-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 50, lines 37-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 25-45","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1343.pdf","page_label":"file page 53, lines 25-45"}],"topics":[],"undated_disposition_date_fallback":null,"updated_at":"2026-09-05T03:22:24Z"}