{"data":{"id":"us-mt/50-73-303","jurisdiction":"us-mt","citation":"50-73-303","heading":"Nonpermissible internal-combustion engines.","body":"Nonpermissible internal-combustion engines or other machinery which gives off noxious fumes may not be permitted underground in any coal mine.","path":["TITLE 50. HEALTH AND SAFETY","CHAPTER 73. SAFETY IN COAL MINES","Part 3. Duties of Operator and Employees in Mine Operation"],"source_url":"https://mca.legmt.gov/bills/mca/title_0500/chapter_0730/part_0030/section_0030/0500-0730-0030-0030.html","current_through":"Montana Code Annotated 2025","vintage":"","retrieved_at":"2026-09-14T04:56:40Z","sha256":"93a6bc2672b9f640fbb50fdd4f544ba2e0acf99f5a251d16b18ea568ced50033","source_id":"us-mt","stale":false,"prev":"us-mt/50-73-302","next":"us-mt/50-73-304"},"notice":"GroundRules: Original legal text. Not legal advice."}