{"operation":"document","citation":"Mich. Admin. Code R 460.20307","title":"Welding preheating","source_type":"regulation","agency":"Michigan Public Service Commission","status":"current","official":true,"published_on":null,"effective_on":"2026-05-04","summary":"Rule 307. In addition to the requirements contained in 49 C.F.R.§192.235, which is adopted by reference in R 460.20606, if preheating is required, then an operator shall monitor the preheat temperature to ensure that the required preheat temperature is reached before beginning, and is maintained dur","machine_formats":{"json":"https://regulus.evalyn.ai/document/mi-admin-code-r-460-20307.json","markdown":"https://regulus.evalyn.ai/document/mi-admin-code-r-460-20307.md"},"app_url":"https://regulus.evalyn.ai/document/mi-admin-code-r-460-20307","source_url":"https://ars.apps.lara.state.mi.us/AdminCode/DownloadAdminCodeFile?FileName=R%20460.20101%20to%20R%20460.20606.pdf","body":"Rule 307. In addition to the requirements contained in 49 C.F.R.§192.235, which is adopted by reference in R 460.20606, if preheating is required, then an operator shall monitor the preheat temperature to ensure that the required preheat temperature is reached before beginning, and is maintained during, the welding operation.\n\nHistory: 1998-2000 AACS.","truncated":false,"body_characters":353}