05/08/2006-Generalindustryandconstructionstandardsregarding...forwelding;§1910.253(b)(2)-1910.253(b)(4)and§1926.350(a)(10).U.S.DepartmentofLaborOccupationalSafety&HealthAdministrationwww.osha.govSearchAdvancedSearch|A-ZIndexStandardInterpretations05/08/2006-Generalindustryandconstructionstandardsregarding"inuse"or"readytouse"and"storage"ofcompressedgasandoxygencylindersforwelding;§1910.253(b)(2)-1910.253(b)(4)and§1926.350(a)(10).StandardInterpretations-TableofContents•StandardNumber:1910.253;1910.253(b)(2);1910.253(b)(3);1910.253(b)(4);1926.350;1926.350(a)(10)OSHArequirementsaresetbystatute,standardsandregulations.Ourinterpretationlettersexplaintheserequirementsandhowtheyapplytoparticularcircumstances,buttheycannotcreateadditionalemployerobligations.ThisletterconstitutesOSHA'sinterpretationoftherequirementsdiscussed.NotethatourenforcementguidancemaybeaffectedbychangestoOSHArules.Also,fromtimetotimeweupdateourguidanceinresponsetonewinformation.Tokeepapprisedofsuchdevelopments,youcanconsultOSHA'swebsiteathttp://www.osha.gov.May8,2006Mr.KennethJ.YotzSeniorVicePresidentEnvironmental,ManagementandTrainingSystems,Inc.919St.AndrewsCircleGeneva,IL60134-2995DearMr.Yotz:ThisisinresponsetoyourJuly21,2001,lettertotheOccupationalSafetyandHealthAdministration(OSHA),inwhichyouasktheDirectorateofConstructiontoreviewinterpretationsoftherequirementsforoxygenandfuelgascylinderstorageforbothgeneralindustry,29CFR1910.253(b)(2)to1910.253(b)(4)andconstruction,§1926.350(a)(10).Youbelievethattwointerpretationspreviouslyissuedtoyou,datedSeptember9,1993,andApril17,2001,whichinterpretgeneralindustryrequirements,areinconflictwithourDecember31,1998,lettertoMr.StevenDineen,whichinterpretsconstructionrequirements.Theissueiswhenisacylinderusedinconstructionconsideredtobe"inuse"or"readytouse."Pleaseacceptoursincereapologiesfortheinordinateandinexcusabledelayinprovidingyouwiththisinterpretation.Iamreviewingthereasonsforthedelayandwilltakethenecessaryactiontopreventsuchadelayfromoccurringinthefuture.IntheDineenletter,weaddressedthecylinderstoragerequirementsapplicabletoconstruction.Westatedthatthegascylinderstoragerequirementsin§1926.350(a)(10)apply:whenitisreasonablyanticipatedthatgaswillnotbedrawnfromthecylinderwithin24hours(overnighthoursincluded).Weexplainedthebasisforthisinterpretationoftheconstructionstandardasfollows:Webelievethatitisreasonabletodefine"storage"basedonwhetheritisreasonablyanticipatedthatgaswillbedrawnfromthecylinderin24hours.Thepurposeoftheseparation/firewallstandardistopreventthespreadoffireandmulti-cylinderexplosionsintheeventasinglecylinderleaksandafirebegins.Bothstorageoptions—separationandfirewall—willusuallyrequireanemployertosetupastorageareasomedistancefromthewelding/cuttingarea.Thismeansthatcylinderswillusuallyhavetobetransportedfromthewelding/cuttingareatothestorageareainordertomeetthestoragerequirements.Also,http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=25356(1of3)[7/10/200812:26:12PM]05/08/2006-Generalindustryandconstructionstandardsregarding...forwelding;§1910.253(b)(2)-1910.253(b)(4)and§1926.350(a)(10).regulatorswillhavetoberemovedandthecylinderscappedeachtimetheyareinstorage.Thereasonableanticipationofusein24hoursapproachrecognizesthatwelding/cuttingoperationsusuallyinvolvegasbeingdrawnsporadically.Ashortertimeperiodthan...
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