{"data":{"id":"us-il/225-ilcs-705-31.04","jurisdiction":"us-il","citation":"225 ILCS 705/31.04","heading":"","body":"If the air at an underground working face in a mine, when tested at a point not less than 12 inches from the roof, face, or rib, contains more than 1.0% of methane as determined by permissible methane detector, a multi-gas detector, air analysis, or other recognized means of accurately detecting such gas, changes or adjustments shall be made at once in the ventilation in such a mine so that such air shall not contain more than 1.0% of methane.","path":["CHAPTER 225 PROFESSIONS, OCCUPATIONS, AND BUSINESS OPERATIONS","Coal Mining Act."],"source_url":"https://www.ilga.gov/legislation/ILCS/details?ActID=1387\u0026ChapterID=24\u0026ChapAct=FullText\u0026Print=True","current_through":"at least Public Act 104-790","vintage":"","retrieved_at":"2026-09-15T04:46:32Z","sha256":"144cb0ea437bd345b2f01321aa15bbbf24afec6f94be928363b6ccffb384ad29","source_id":"us-il","stale":false,"prev":"us-il/225-ilcs-705-31.03","next":"us-il/225-ilcs-705-31.05"},"notice":"GroundRules: Original legal text. Not legal advice."}