{"data":{"id":"us/30-cfr-36.28","jurisdiction":"us","citation":"30 CFR 36.28","heading":"Signal or warning device.","body":"All mobile diesel-powered transportation equipment shall be provided with a bell, horn, or other suitable warning device convenient to the operator. Warning devices shall be operated manually or pneumatically.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS","PART 36—APPROVAL REQUIREMENTS FOR PERMISSIBLE MOBILE DIESEL-POWERED TRANSPORTATION EQUIPMENT","Subpart B—Construction and Design Requirements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"45d7b7ae906c3e22680b871b5c47b20286adac4a9d8c05eb50817b8cdf01b204","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-36.27","next":"us/30-cfr-36.29"},"notice":"GroundRules: Original legal text. Not legal advice."}