§ 393.106 General requirements for securing articles of cargo.

(a) General ruleApplicability. (1)The Exceptrules as provided in paragraph (g) of this section, everyare cargo-carryingapplicable motorto vehiclethe musttransportation be equipped with a headerboard or similar device of sufficientall strengthtypes to prevent load shifting and penetration or crushing of thearticles driver's compartment.
(2) On and after the effective dates specified in paragraph (h) of this sectioncargo, everyexcept cargo-carryingcommodities motorin vehiclebulk mustthat havelack a front-end structure thator conformsfixed toshape the rules in this section.
(b) Locatione.g., Theliquids, front-endgases, structuregrain, mustliquid beconcrete, locatedsand, betweengravel, the vehicle's cargo and the vehicle's driver.
(caggregates) Height and width.are Thetransported front-endin structure must extend either to a heighttank, ofhopper, 4box, feet above the floor of the vehicle or tosimilar adevice heightthat atforms whichpart it blocks forward movement of anythe itemstructure of cargoa beingcommercial carriedmotor on the vehicle, whichever is lower. The front-endrules structurein mustthis havesection aapply width which is at least equal to the widthcargo oftypes thecovered vehicleby orthe whichcommodity-specific blocksrules forward movement of any§ item393.116 ofthrough cargo§ being transported on the vehicle, whichever is narrower393.
(d) Strength136. The frontcommodity-endspecific structurerules musttake beprecedence capableover of withstanding the horizontalgeneral forwardrequirements static load specified in either paragraph (d) (1) or (2) of this section.
(1) Forwhen aadditional front-endrequirements structureare lessgiven thanfor 6 feet in height, a horizontalcommodity forwardlisted staticin loadthose equal to one half sections.
(1/2b) ofGeneral. theCargo weightmust ofbe thefirmly cargoimmobilized beingor transportedsecured on theor vehiclewithin uniformlya distributedvehicle overby thestructures entire portion of theadequate front-endstrength, structuredunnage thator isdunnage withinbags, 4shoring feetbars, abovetiedowns the vehicle's floor or that is at or below a heightcombination above the vehicle's floor at which it blocks forward movement of any item of the vehicle's cargo, whichever is lessthese.
(2c) ForCargo aplacement front-endand structurerestraint. 6 feet in height or higher, a horizontal forward static load equal to four-tenths (0.41) ofArticles the weight of the cargo beingthat transportedare onlikely theto vehicleroll uniformly distributed over the entire front-end structure.
(e) Penetration resistance. The front-end structure must be designed,restrained constructed and maintained so that it is capable of resisting penetration by anychocks, itemwedges, of cargo that contacts it when the vehicle decelerates at a ratecradle ofor 20other feetequivalent permeans secondto perprevent secondrolling. The front-endmeans structureof mustpreventing haverolling nomust aperturenot largebe enoughcapable toof permitbecoming anyunintentionally itemunfastened ofor cargoloose inwhile contact with the structurevehicle tois passin through ittransit.
(f2) SubstituteArticles devices.or Thecargo requirementsplaced ofbeside thiseach sectionother mayand besecured met by thetransverse usetiedowns ofmust deviceseither:
(i) performingBe theplaced samein functionsdirect ascontact awith front-endeach structureother, ifor
(ii) theBe devicesprevented arefrom at least as strong as, and provide protection against shifting cargotowards ateach leastother equalwhile to,in a front-end structure which conforms to those requirementstransit.
(gd) Exemptions.Aggregate Theworking followingload motorlimit vehiclesfor aretiedowns. exemptThe fromaggregate theworking rulesload inlimit thisof section:
(1)tiedowns A vehicle which is designed and used exclusively to transportsecure otheran vehicles,article ifor eachgroup vehicleof itarticles transportsagainst ismovement securelymust tiedbe downat byleast devicesone-half thattimes conform to the requirementsweight of §the 393.102.
(2)article A pole trailer or semitrailergroup beingof towedarticles. byThe aaggregate truckworking tractorload thatlimit is equipped with a front-end structure that conforms to the rulessum in this section.of:
(31) AOne-half fullthe trailerworking beingload towedlimit byof aeach vehicletiedown that isgoes equippedfrom withan aanchor front-endpoint structureon thatthe conformsvehicle to thean requirementsanchor ofpoint thison sectionan forarticle aof front-end structure.cargo;
(42) AOne-half fullthe trailerworking beingload towedlimit byof aeach vehicletiedown that is loadedattached into suchan aanchor mannerpoint thaton the cargovehicle, onpasses thethrough, towingover, vehicleor conformsaround to the requirementsarticle of thiscargo, sectionand foris athen front-endattached structure.
(5)to Thean rulesanchor inpoint paragraphson (d)the andsame (e)side of thisthe section do not apply to a motor vehicle manufactured before January 1, 1974.
(h3) EffectiveThe dates.working Cargo-carryingload motorlimit vehiclesfor whicheach aretiedown notthat exemptedgoes byfrom paragraphan (g)anchor ofpoint thison section must conform to the rules in this section as follows:
If the vehicle was manufactured— It must conform to the rules in paragraph— On and after—
Before Jan. 1, 1974 (a)through, (b)over, and (f) October 1, 1973 or around the datearticle itof was manu- facturedcargo, which-ever is later.
Before Jan. 1, 1974 (c) January 1, 1975.
On or after Jan. 1, 1974 (a) through (f) inclusive The date it was manufactured.
Paragraphs (d) and (e)then ofattaches this section do not apply to aanother motoranchor vehiclepoint thaton wasthe manufacturedother beforeside Januaryof 1,the 1974vehicle.
Effective Date Note:
At [67 FR 61225, Sept. 27, 2002, subpartas Iamended toat part68 393FR was revised effective December 2656208, 2002Sept. For30, the2003; convenience71 ofFR the user35833, theJune revised22, text is set forth as follows.2006]