The qualified person attending the unloading of a cargo tank must be alert and have an unobstructed view of the cargo tank and delivery hose to the maximum extent practicable during the unloading operation; or. (r) Unloading using facility-provided hoses. No Division 2.1 (flammable gas) material shall be loaded into or on or unloaded from any cargo tank motor vehicles with the engine running unless the engine is used for the operation of the transfer pump of the vehicle. WebLoads should be spread as evenly as possible, during both loading and unloading. No tools which are likely to damage the effectiveness of the closure of any package or other container, or likely adversely to affect such package or container, shall be used for the loading or unloading of any Class 1 (explosive) material or other dangerous article. Regulation Y To provide against ignition of vapors by discharge of static electricity, the latter connection shall be made at a point well removed from the opening from which the Class 3 (flammable liquid) material is to be discharged. (2) There is no combustion apparatus in the cargo compartment. Vehicles must never be overloaded. (m) Tanks constructed and maintained in compliance with Spec. 177.841 Division 6.1 (poisonous) materials and Division 2.3 (poisonous gas) materials. The maximum gross weight of Division 2.3 Hazard Zone A material carried on one vehicle must not exceed 3,636 kg (8,000 lbs.). This check must be made after the pressure in the discharge system has reached at least equilibrium with the pressure in the cargo tank. (i) Division 4.2 (self-heating liquid) material. It also offers a one-stop location to find applicable Department of Transportation (DOT) and Environmental Protection Agency (EPA) compliance requirements related to worker protection. This connection must be made before any filling hole is opened, and must remain in place until after the last filling hole has been closed. Web1926.453 (a) (1) Unless otherwise provided in this section, aerial lifts acquired for use on or after January 22, 1973 shall be designed and constructed in conformance with the However, the carrier's obligation to ensure attendance during unloading ceases when: (i) The carrier's obligation for transporting the materials is fulfilled; (ii) The cargo tank has been placed upon the consignee's premises; and. (3) In either such case, such containers shall be safely and securely blocked or held down to prevent shifting relative to each other or to the supporting structure when in transit, particularly during sudden starts and stops and changes of direction of the vehicle. WebThe DLL320-23W LED light head for loading docks is an ideal lighting fixture for busy warehouses. Unless the delivery hose is equipped with a shut-off valve at its discharge end, the engine of the motor vehicle shall be stopped at the finish of such loading or unloading operation while the filling or discharge connections are disconnected. 5101-5128; sec. OSHA establishes rules for tractor trailers under its guidelines in 1970.178. The procedures must describe the cargo tank motor vehicle's emergency discharge control features and, for a passive shut-down capability, the parameters within which they are designed to function. (b) This section does not apply to any vehicle used solely for transporting Class 7 (radioactive) material if a survey of the interior surface shows that the radiation dose rate does not exceed 0.1 mSv per hour (10 mrem per hour) at the interior surface or 0.02 mSv per hour (2 mrem per hour) at 1 meter (3.3 feet) from any interior surface. For a cargo tank motor vehicle equipped with an off-truck remote means to close the internal self-closing stop valve and shut off all motive and auxiliary power equipment, an operator must successfully test the activation device within 18 hours prior to the first delivery of each day. The diesel engine of a cargo tank motor vehicle may be left running during the loading and unloading of a Class 3 material if the ambient atmospheric temperature is at or below 12 C (10 F). (h) Division 4.2 (pyrophoric liquid) materials in cylinders. (3) There is no connection for return of air from the cargo compartment to the combustion apparatus. Each group of packages must be handled and stored together no closer than 6 m (20 feet) (measured edge to edge) to any other group. (d) Each transport vehicle used to transport Division 6.2 materials must be disinfected prior to reuse if a Division 6.2 material is released from its packaging during transportation. Although many of the rules guiding the trucking industry are established by different agencies, OSHA offers some guidance for trailer safety under 1910.178. A cargo tank must be attended by a qualified person at all times when it is being loaded. (p) Unloading procedures for liquefied petroleum gas and anhydrous ammonia in metered delivery service. Uneven loads can make the vehicle or trailer unstable. (e) A motor carrier may not transport a package: (1) Except as provided in paragraph (e)(3) of this section, bearing or required to bear a POISON or POISON INHALATION HAZARD label or placard in the same motor vehicle with material that is marked as or known to be foodstuffs, feed or edible material intended for consumption by humans or animals unless the poisonous material is packaged in accordance with this subchapter and is: (i) Overpacked in a metal drum as specified in 173.25(c) of this subchapter; or. (8) The heater unit must utilize outside air for combustion (air from the cargo space cannot be used for combustion). (3) A qualified person attends the loading or unloading of a cargo tank only if, throughout the process: (i) Except for unloading operations subject to 177.837(d) and 177.840(p) and (q), the qualified person is within 7.62 m (25 feet) of the cargo tank. (j) Transfer of Class 1 (explosive) materials en route. here. (d) Unloading combustible liquids. (s) Off-truck remote shut-off activation device. (c) Division 2.3 (poisonous gas) or Division 6.1 (poisonous) materials. guide. Until a cargo tank motor vehicle is equipped with emergency discharge control equipment in conformance with 173.315(n)(2) and 180.405(m)(1) of this subchapter, the qualified person attending the unloading operation must remain within arm's reach of a means to close the internal self-closing stop valve when the internal self-closing stop valve is open except during short periods when the qualified person must activate controls or monitor the receiving container. (g) A motor vehicle may only contain 45.4 kg (100 pounds) or less net mass of material described as Smokeless powder for small arms, Division 4.1 or Black powder for small arms, Division 4.1.. Choosing an item from In addition, its WebHowever, interior combinations of axles, such as the "tractor bridge" (axles 1, 2, and 3) and "trailer bridge" (axles 2, 3, 4, and 5), must also comply with weights computed by the Bridge Formula (Figure 3). If you work for a Federal agency, use this drafting The person who is responsible for loading the cargo tank is also responsible for ensuring that it is so attended. Weight of Vehicle + Load This prohibition does not apply if, prior to expiration of the OWTT, the cargo tank is brought to full equilibration as specified in paragraph (j) of this section. For a cargo tank motor vehicle with an off-truck remote control shut-off capability as required by 173.315(n)(3) or (n)(4) of this subchapter, the qualified person attending the unloading operation must be in possession of the activation device at all times during the unloading process. The gross trailer weight rating (GTWR) is the total mass of a road trailer that is loaded to capacity, including the weight of the trailer itself, plus fluids and cargo, that a vehicle is rated to tow by the manufacturer. While the jack is in place, the trailer is immobilized and typically is raised off the ground. (iii) The motive power has been removed from the cargo tank and removed from the premises. No Class 1 (explosive) materials may be loaded into or on or be unloaded from any motor vehicle with the engine running, except that the engine of a multipurpose bulk truck (see paragraph (d) of this section) and the engine of a cargo tank motor vehicle transporting a single bulk hazardous material for blasting may be used for the operation of the pumping equipment of the vehicle during loading or unloading. (a) Nitric acid. (1) When a cargo tank is loaded through an open filling hole, one end of a bond wire shall be connected to the stationary system piping or integrally connected steel framing, and the other end to the shell of the cargo tank to provide a continuous electrical connection. - Other Regulations Relating to Transportation, - Pipeline and Hazardous Materials Safety Administration, Department of Transportation, https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-177/subpart-B. Division 1.1 or 1.2 (explosive) materials may not be loaded into or carried on any vehicle or a combination of vehicles if: (1) More than two cargo carrying vehicles are in the combination; (2) Any full trailer in the combination has a wheel base of less than 184 inches; (3) Any vehicle in the combination is a cargo tank which is required to be marked or placarded under 177.823; or. An operator must use the following procedures for unloading liquefied petroleum gas or anhydrous ammonia from a cargo tank motor vehicle in other than metered delivery service: (1) The qualified person attending the unloading operation must remain within 7.62 m (25 feet) of the cargo tank when the internal self-closing stop valve is open. Class 1 (explosive) materials placards or markings required by 177.823 shall be secured, in the appropriate locations, directly to the equipment transporting the Class 1 (explosive) materials. Each operator of a cargo tank motor vehicle that is subject to the emergency discharge control requirements in 173.315(n) of this subchapter must carry on or within the cargo tank motor vehicle written emergency discharge control procedures for all delivery operations. A Specification DOT-4L cylinder containing hydrogen, cryogenic liquid may only be transported on a motor vehicle as follows: (i) The vehicle must have an open body equipped with a suitable rack or support having a means to hold the cylinder upright when subjected to an acceleration of 2 g in any horizontal direction; (ii) The combined total of the hydrogen venting rates, as marked, on the cylinders transported on one motor vehicle may not exceed 60 SCF per hour; (iii) The vehicle may not enter a tunnel; and. Redesignated at 32 FR 5606, Apr. (i) Use of combustion cargo heaters. (c) Lading ventilation, precautions against spontaneous combustion. (i) Class 1 (explosive) materials to be protected against damage by other lading. For Federal Register citations affecting 177.840, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov. (j) Except for a cargo tank conforming to 173.29(b)(2) of this subchapter, a person may not drive a cargo tank motor vehicle containing a hazardous material regardless of quantity unless: (1) All manhole closures are closed and secured; and. This content is from the eCFR and may include recent changes applied to the CFR. An operator must use the following procedures for unloading liquefied petroleum gas or anhydrous ammonia from a cargo tank motor vehicle in metered delivery service: (1) For a cargo tank with a capacity of 13,247.5 L (3,500 water gallons) or less, excluding delivery hose and piping, the qualified person attending the unloading operation must remain within 45.72 meters (150 feet) of the cargo tank and 7.62 meters (25 feet) of the delivery hose and must observe both the cargo tank and the receiving container at least once every five minutes when the internal self-closing stop valve is open during unloading operations that take more than five minutes to complete. (3) No more than two cargo carrying vehicles may be in the same combination of vehicles. No hazardous material shall be loaded into or on, or unloaded from, any motor vehicle unless the handbrake be securely set and all other reasonable precautions be taken to prevent motion of the motor vehicle during such loading or unloading process. (2) All valves and other closures in liquid discharge systems are closed and free of leaks, except external emergency self-closing valves on MC 338 cargo tanks containing the residue of cryogenic liquids may remain either open or closed during transit. (2) The heater is not ignited in a loaded vehicle. Figure 3. WebOSHA establishes rules for tractor trailers under its guidelines in 1970.178. (5) Heater requirements under 393.77 of this title are complied with. Web(4) The rules in this paragraph (b) do not apply to the driver of a sealed commercial motor vehicle who has been ordered not to open it to inspect its cargo or to the driver of a commercial motor vehicle that has been loaded in a manner that makes inspection of its cargo impracticable. (B) A Division 2.1 material requiring strong non-bulk outer packagings in accordance with 173.301(a)(9) of this subchapter must be overpacked in a UN 1A2 steel or 1H2 plastic drum tested and marked for a PG II or higher performance level. L. 112-141, 126 Stat. Nothing contained in this section shall be so construed as to prohibit the loading of such cylinders on any motor vehicle having a floor or platform and racks as hereinbefore described. (i) No person may transport a Division 2.1 (flammable gas) material that is a cryogenic liquid in a cargo tank motor vehicle unless the pressure of the lading is equal to or less than that used to determine the marked rated holding time (MRHT) and the one-way travel time (OWTT), marked on the cargo tank in conformance with 173.318(g) of this subchapter, is equal to or greater than the elapsed time between the start and termination of travel. For chlorine cargo tank motor vehicles, the qualified person must remain within arm's reach of a means to stop the flow of product except for short periods when it is necessary to activate controls or monitor the receiving container. site when drafting amendatory language for Federal regulations: A cargo tank motor vehicle equipped with a specially designed delivery hose assembly to meet the requirements of 173.315(n)(2) of this subchapter may be unloaded using a delivery hose assembly provided by the receiving facility under the following conditions: (1) The qualified person monitoring unloading must visually examine the facility hose assembly for obvious defects prior to its use in the unloading operation. (4) A person is qualified if he has been made aware of the nature of the hazardous material which is to be loaded or unloaded, has been instructed on the procedures to be followed in emergencies, and except for persons observing loading or unloading operations by means of video cameras and monitors or instrumentation and signaling systems such as sensors, alarms, and electronic surveillance equipment located at a remote control station and persons inspecting hoses in accordance with paragraph (i)(3)(iii) of this section, is authorized to move the cargo tank, and has the means to do so. In addition, the segregation requirements in 177.848 do not apply. A safe haven that conforms to NFPA 498 (IBR, see 171.7 of the subchapter) constitutes a federally approved safe haven for the unattended storage of vehicles containing Division 1.1, 1.2, or 1.3 materials. L. 103-311, 108 Stat. Packages having valves or other fittings must be loaded in a manner to minimize the likelihood of damage during transportation. 177-78, 55 FR 52712, Dec. 21, 1990; Amdt. [Amdt. WebEnsure the vehicle or trailer has its brakes applied and all stabilisers are used. For shipments transported as exclusive use under the provisions of 173.441(b) of this subchapter for packages with external radiation levels in excess of 2 mSv (200 mrem per hour) at the package surface, the motor vehicle must meet the requirements of a closed transport vehicle (see 173.403 of this subchapter). (B) Protection against use. These vehicles must be stenciled with the words For Radioactive Materials Use Only in lettering at least 7.6 cm (3 inches) high in a conspicuous place, on both sides of the exterior of the vehicle. Electrical systems within the trailer's interior must be non-sparking or explosion proof. Organization and Purpose (2) The pressure in the cargo tank must be measured at least ten minutes after the manual release is terminated. This includes some guidance regarding when and how to use jack stands in the loading and unloading of a trailer. Extreme care shall be taken in the loading or unloading of any Class 1 (explosive), Class 3 (flammable liquid), Class 4 (flammable solid), Class 5 (oxidizing), or Division 2.1 (flammable gas) materials into or from any motor vehicle to keep fire away and to prevent persons in the vicinity from smoking, lighting matches, or carrying any flame or lighted cigar, pipe, or cigarette. (i) Except as provided in paragraph (p)(2)(ii) of this section, the qualified person attending the unloading operation must have an unobstructed view of the cargo tank and delivery hose to the maximum extent practicable, except during short periods when it is necessary to activate controls or monitor the receiving container. The official, published CFR, is updated annually and available below under (B) The loading or unloading operations must be physically inspected by a qualified person at least once every sixty (60) minutes. (e) Handbrake set while loading and unloading. (2) Onto a suitable frame of a motor vehicle. There must be no tampering with such container or the contents thereof nor any discharge of the contents of any container between point of origin and point of billed destination. OSHA eTool. (d) Keep fire away, loading and unloading. WebExcept as provided in paragraph (b) (4) of this section, the driver of a truck or truck tractor must -. (h) The driver of a motor vehicle transporting a Division 2.1 (flammable gas) material that is a cryogenic liquid in a package exceeding 450 L (119 gallons) of water capacity shall avoid unnecessary delays during transportation. Contact of the closed connection must be made before flow starts and must not be broken until after the flow is completed. These vehicles must be kept closed at all times other than loading and unloading. When 172.101 of this subchapter specifies that Class 1 (explosive) materials may be transported in accordance with 173.66 of this subchapter (per special provision 148 in 172.102(c)(1)), these materials may be transported on the same vehicle with Division 5.1 (oxidizing) materials, or Class 8 (corrosive) materials, and/or Combustible Liquid, n.o.s., NA1993 only under the conditions and requirements set forth in IME Standard 23 (IBR, see 171.7 of this subchapter) and paragraph (g) of this section.