§ 393.25 Requirements for lamps other than head lamps.

(a) Mounting. All lamps shall be permanently and securely mounted in workmanlike manner on a permanentrigid part of the motor vehicle,. exceptTemporary that temporary lamps onmust motorbe vehiclessecurely beingmounted transportedto inthe driveaway-towawayload operations and temporaryare electricnot lampsrequired onto projecting loads need not be permanently mounted norto mounted on a permanent part of the vehicle.
(b) TheVisibility. requirementEach forlamp threeshall identificationbe lampslocated onso thethat centerlineit ofmeets athe vehiclevisibility willrequirements bespecified met as to location by oneFMVSS lampNo. on108 thein centerline,effect withat the othertime twoof atmanufacture rightof andthe leftvehicle. AllVehicles temporarywhich lampswere mustnot besubject firmlyto attached.
(b)FMVSS VisibilityNo. All108 requiredat exteriorthe lampstime shall be so mounted as to be capable of beingmanufacture seenshall athave alleach distanceslamp betweenlocated 500so feetthat andit 50meets feetthe undervisibility clearrequirements atmosphericspecified conditionsin during the timeSAE lampsstandards arelisted requiredin toparagraph be(c) lighted.of Thethis lightsection. fromIf frontmotor clearancevehicle andequipment front(e.g., identificationmirrors, lampssnow shallplows, bewrecker visiblebooms, to the frontbackhoes, thatand fromwinches) sidemarkerprevents lampscompliance towith thethis side,paragraph thatby fromany rearrequired clearancelamp, rearan identification,auxiliary andlamp tailor lampsdevice tomeeting the rear,requirements andof thatthis fromparagraph projectingshall loadmarkerbe lamps from those directions required by § 393provided.11. This shall not be construed to apply to lamps on one unit which are obscured by another unit of a combination of vehicles.
(c) Specifications. All required lamps (except thosemarker alreadylamps installed on vehiclesprojecting tenderedloads, forlamps transportationwhich inare driveawaytemporarily andattached towaway operations shall conform to appropriatevehicles requirementstransported ofin thedriveaway-towaway SAEoperations, Standards and/or Recommended Practices 1
as indicated below, except that the minimum required marking of lamps conformingon toconverter thedollies 1985and requirementspole shall be as specified in paragraph (dtrailers) ofon thisvehicles section.manufactured Projectingon loador markerafter lampsDecember shall conform to the requirements for clearance25, side-marker1968, and identification lamps. Turn signals shall conform to the requirements for class A, Typeat Ia turn signalsminimum, provided.
1meet Seethe footnoteapplicable 1requirements toof §FMVSS 393No.24(c).
(1) Lamps108 onin vehicleseffect madeon beforethe Julydate 1,of 1961,manufacture excepting replacement lamps as specified in paragraph (c)(2) of this section, shall conform to the 1952 requirementsvehicle.
(2) LampsMarker onlamps vehicles made on andprojecting after July 1loads, 1961,all and replacement lamps installedwhich onare and after December 31, 1961, shall conform to the 1985 requirements.
(3) Lamps temporarily attached to vehicles transported in driveaway and -towaway operations, on and afterall Decemberlamps 31,on 1961,converter shalldollies conform to the 1985 requirements.
(d) Certification and markings.pole Alltrailers lampsmust requiredmeet to conform to the requirementsfollowing ofapplicable the SAE Standardsstandards: 1
shallJ586—Stop beLamps certifiedfor byUse theon manufacturerMotor orVehicles supplierLess thatThan they2032 domm so conform, by markings indicated below. The markings in eachOverall caseWidth, shallMarch be2000; visibleJ2261 when the lamp is in place on the vehicle.
1 See footnote 1 to § 393.24(c).
(1) Stop lampsLamps shalland beFront- marked with the manufacturer's or supplier's name or trade name and shall be marked “SAERear-S”.
(2) Turn signalSignal unitsLamps shallfor beUse markedon withMotor theVehicles manufacturer's2032 ormm supplier's name or tradeMore namein andOverall shallWidth, beJanuary marked2002; “SAE-AI”J585—Tail orLamps “SAE-I”.
(3)Rear TailPosition lampsLamps) shallfor beUse markedon withMotor theVehicles manufacturer'sLess orThan supplier's2032 namemm orin tradeOverall name and shall be marked “SAE-T”.
(4) ClearanceWidth, sideMarch marker,2000; identification,J588—Turn andSignal projectingLamps load-markerfor lamps,Use excepton combinationMotor lamps,Vehicles shallLess beThan marked2032 withmm thein manufacturer'sOverall orWidth, supplier'sMarch name2000; orJ2040—Tail tradeLamps name(Rear andPosition shall be marked “SAE” or “SAE-P”.
(5Lamps) Combinationfor lampsUse shallon beVehicles marked2032 withmm the manufacturer's or supplier'sMore namein orOverall tradeWidth, nameMarch and2002; shallJ592—Sidemarker beLamps markedfor “SAE”Use followedon byRoad theVehicles appropriateLess lettersThan indicating2032 themm individualin lampsOverall combined. The letter “A”Width, asAugust specified2000. in(See § 393.26(c),7 mayfor beinformation includedon to certify that a reflector in the combinationincorporation conformsby toreference theand requirementsavailability appropriateof tothese such markingdocuments. If the letter “I” follows the letter “A” immediately the two letters shall be deemed to refer to a turn signal unit, as specified in paragraph )
(d) (2Reserved)
(e) ofLamps thisto sectionbe steady-burning. CombinationAll clearanceexterior andlamps side(both markerrequired lamps mayand beany markedadditional “SAE-PC”.
(elamps) Lightingshall devices to be steady-burning. Allwith exteriorthe lightingexception devices shall be of theturn steady-burningsignal typelamps; excepthazard turnwarning signalssignal onlamps; anyschool vehicle,bus stopwarning lamps; whenamber usedwarning aslamps turnor signals,flashing warning lamps on schooltow busestrucks whenand operatingcommercial asmotor such,vehicles transporting oversized loads; and warning lamps on emergency and service vehicles authorized by State or local authorities,. andLamps except that lamps combined into the same shell or housing with anya turn signal mayare benot turnedrequired offto bybe thesteady sameburning switchwhile that turns the turn signal onis forin flashinguse. andAmber turnedwarning onlamps againmust whenmeet theSAE turnJ845—Optical signalWarning asDevices suchfor isAuthorized turnedEmergency, off.Maintenance Thisand paragraphService shallVehicles, notMay be1997. construedAmber toflashing prohibitwarning thelamps usemust ofmeet vehicularSAE hazardJ595—Directional warningFlashing signalOptical flashersWarning asDevices requiredfor byAuthorized §Emergency, 392.22Maintenance orand permittedService byVehicles, §January 3922005.18.
(f) StopAmber lampgaseous operation.discharge Allwarning stop lamps onmust eachmeet motorSAE vehicleJ1318 orGaseous combinationDischarge ofWarning motorLamp vehiclesfor shallAuthorized beEmergency, actuatedMaintenance, uponand applicationService ofVehicles, anyMay of1998. the(See service§ brakes,393.7(b) exceptfor thatinformation suchon actuationthe isincorporation notby requiredreference uponand activationavailability of thethese emergencydocuments.)
(f) featureStop oflamp traileroperation. brakesThe bystop meanslamps ofon eithereach manualvehicle orshall automaticbe controlactivated onupon theapplication towingof vehicle,the andservice exceptbrakes. thatThe stop lamps onare anot towingrequired vehicleto need not be actuatedactivated when servicethe brakesemergency arefeature appliedof to the towedtrailer vehiclesbrakes oris vehiclesused only,or andwhen exceptthe that no stop lamp need be actuated as such when it is inoptically usecombined aswith athe turn signal orand when it is turned off by the turn signal switchis as provided in paragraph (e) of this sectionuse.
[3370 FR 1973548047, DecAug. 2515, 1968, as amended at 48 FR 57139, Dec. 28, 1983; 53 FR 49397, Dec. 7, 1988; 61 FR 1843, Jan. 24, 19962005]