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1、DEPARTMENTOFTHEAIRFORCEHEADQUARTERSUNITEDSTATESAIRFORCEWASHINGTON,D.C.20332REPLYTOATTNOF:LEEDSUBJECT:EngineeringTechnicalLetter(ETL)90-3:TEMPESTProtectionforFacilitiesTO:SEEDISTRIBUTIONLIST1.Attachedforyourinformationandactionistheguidanceforplanning,programming,desig
2、n,constructionandtestingTEMPESTshieldedfacilities.2.Purpose.ThisETL:a.IsauthorizedinaccordancewithAFR8-7,AirForceEngineeringTechnicalLetters(ETL)dated9January1986,andistobeimplementedaccordingly.b.SupersedestheTEMPESTportionofETL88-7:TEMPESTandHigh-AltitudeElectromagn
3、eticPulse(HEMP)ProtectionforFacilities,24Aug88.c.ImplementsthedirectivesofAFR56-16,ControlofCompromisingEmanations(TEMPEST)(C).d.ImplementstheguidelinesofUnderSecretaryofDefenseMemorandum,TEMPESTCountermeasuresAppliedtoIndustry,3Dec84(C)foramorereasonableandcosteffect
4、ivemeanstoprotectagainstthedemonstratedvulnerability.e.Establishesguidelinesfordeterminingthedegreeofprotectionduringthefacilityplanningstage.f.ProvidesguidanceforprogrammingTEMPESTprotectionprojectsandfordevelopingtheprojectnarrativeandmanagementplansfortheRequiremen
5、tsandManagementPlan(RAMP).g.Establishesguidancefordesign,construction,andtestingofprotectedenclosuresorfacilities.3.EffectiveDate:ThisETLiseffectivestartingwiththoseprojectswhichhavenotreachedthe30percentpreliminarydesignstageasofthedateofthisletter.4.Thisletterhasbee
6、ncoordinatedwithAF/SCTI/SCTX/INSCI/SCMC,HQESC/LEEEC,AFCSC/SRVT,andAFESC/DEMM.5.OurpointofcontactisMr.R.S.FernandezatAV297-4083or(202)767-4083.FORTHECHIEFOFSTAFFG.HAMMONDMYERSIII,GM-153AtchDeputyCh,InstallationDevelopmentDiv1.DistributionListDirectorateEngineeringandSe
7、rvices2.TEMPESTCriteria3.Indexcc:SAF/AQCMAF/LEEPD/LEEPR/LEEDM/LEEDFLEEDX/SCTI/SCTX/INSC/SCMC/PRPJDISTRIBUTIONLISTALMAJCOM/DEE/DEM/DEPAFRCE-WR/ROAFRCE-CR/ROAFRCE-ER/ROAFRCE-BMS/DEEAFRCE-SAC/DEEHQAFSC/DEE/DEPHQAU/DEE/DEMAFIT/DET/DEMHQESC/LEEEHQAFCC/DEMHQAFRES/DEE/DEH/DE
8、PAAFES/EN-CEANGSC/DEE/DEOHQAFESC/DEM/DEMMNAVFACCODE04/051100CES/DEE/DEMCEMP-ETHQUSAFA/DEMAHQAFCOMS/DEEHQUSAFE/DER1839EIG/EIX
