1MIOSHA-STD-1402(04/18)36PagesForfurtherinformationPh:517-284-7740www.michigan.gov/mioshastandardsDEPARTMENTOFLICENSINGANDREGULATORYAFFAIRSDIRECTOR'SOFFICEOCCUPATIONALHEALTHSTANDARDSFiledwiththeSecretaryofStateonOctober9,1995(asamendedFebruary13,1998)(asamendedDecember16,2004)Theserulestakeeffect7daysafterfilingwiththeSecretaryofState(Byauthorityconferredonthedirectorofthedepartmentoflaborandeconomicgrowthbysections14and24of1974PA154andExecutiveReorganizationOrderNos.1996-1,1996-2,and2003-18,MCL408.1014,408.1024,330.3101,445.2001,and445.2011)R325.62991,R325.62992,R325.62994,R325.62995,andR325.62996oftheMichiganAdministrativeCodeareamendedasfollows:CONSTRUCTIONSAFETYANDHEALTHSTANDARDPART665.UNDERGROUNDCONSTRUCTION,CAISSONS,COFFERDAMS,ANDCOMPRESSEDAIRTableofContents:R325.62991Undergroundconstruction;adoptionofregulationsbyreference;exceptions................2R325.62992Caissons;adoptionofregulationsbyreference...........................................................2R325.62994Compressedair;adoptionofregulationsbyreference........................................3R325.62995Definitionsapplicabletoundergroundconstruction,caisson,cofferdams,andcompressedair;adoptionbyreference.................3R325.62996Availabilityofdocuments........................31926.800UNDERGROUNDCONSTRUCTION..........4(a)Scopeandapplication.....................................4(b)Accessandegress.*.......................................4(c)Check-in/check-out.*.......................................4(d)Safetyinstruction.*..........................................4(e)Notification......................................................4(f)Communications.*...........................................4(g)Emergencyprovisions.*..................................4(h)Hazardousclassifications...............................4(i)Gassyoperations-additionalrequirements.....4(j)Airqualityandmonitoring...............................5(k)Ventilation.......................................................6(l)Illumination......................................................7(m)Firepreventionandcontrol.............................7(n)Welding,cutting,andotherhotwork..............7(o)Groundsupport...............................................8(p)Blasting.*.........................................................8(q)Drilling.*...........................................................8(r)Haulage.*........................................................8(s)Electricalsafety..............................................9(t)Hoistinguniquetoundergroundconstruction.9(u)Definitions.....................................................101926.801CAISSONS................................................111926.802COFFERDAMS*........................................111926.803COMPRESSEDAIR..................................11(a)Generalprovisions.......................................11(b)Medicalattendance,examination,andregulations....................................................11(c)Telephoneandsignalcommunication..........12(d)Signsandrecords........................................13(e)Compression................................................13(f)Decompression.............................................13(g)Manlocksandspecialdecompressionchambers......................................................13(h)Compressorplantandairsupply.............
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