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§173.185. Lithium cells and batteries. — Inbound Citations

49 C.F.R. § 173.185

Cited by 26 regulations in release 2026-08-27.

Citations to 49 C.F.R. § 173.185 as a whole

  • (4) These provisions apply only to transportation in IBCs and Large Packagings. Table 1 authorizes IBCs for specific proper shipping names through the use of IB Codes assigned in the § 172.101 table of this subchapter. Table 2 defines IP Codes on the use of IBCs that are assigned to specific commodities in the § 172.101 Table of this subchapter. Table 3 authorizes Large Packagings for specific proper shipping names through the use of IB Codes assigned in the § 172.101 table of this subchapter. Large Packagings are authorized for the Packing Group III entries of specific proper shipping names when either special provision IB3 or IB8 is assigned to that entry in the § 172.101 Table. When no IB code is assigned in the § 172.101 Table for a specific proper shipping name, or in § 173.185 or § 173.225(e) Organic Peroxide Table for Type F organic peroxides, use of an IBC or Large Packaging for the material may be authorized when approved by the Associate Administrator. The letter “Z” shown in the marking code for composite IBCs must be replaced with a capital code letter designation found in § 178.702(a)(2) of this subchapter to specify the material used for the other packaging. Tables 1, 2, and 3 follow:
  • (3) Electric storage batteries and lithium batteries (life-saving appliances containing lithium batteries must be packed in accordance with § 173.185 and Special Provisions A54 and A101 as applicable.);
  • (d) Except as provided in § 172.102, special provision A101, of this subchapter, vehicles, engines, and machinery powered by lithium metal batteries, that are transported with these batteries installed, are forbidden aboard passenger-carrying aircraft. Lithium batteries contained in vehicles, engines, or mechanical equipment must be securely fastened in the battery holder of the vehicle, engine, or mechanical equipment, and be protected in such a manner as to prevent damage and short circuits (e.g., by using non-conductive caps that cover the terminals entirely). Except for vehicles, engines, or machinery transported by highway, rail, or vessel with prototype or low production lithium batteries securely installed, each lithium battery must be of a type that has successfully passed each test in the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter), as specified in § 173.185, unless approved by the Associate Administrator. Where a vehicle could possibly be handled in other than an upright position, the vehicle must be secured in a strong, rigid outer packaging. The vehicle must be secured by means capable of restraining the vehicle in the outer packaging to prevent any shifting during transport which would change the orientation or cause the vehicle to be damaged. Where the lithium battery is removed from the vehicle and is packed separate from the vehicle in the same outer packaging, the package must be consigned as “UN 3481, Lithium ion batteries packed with equipment” or “UN 3091, Lithium metal batteries packed with equipment” and prepared in accordance with the requirements specified in § 173.185.
  • (i) The lithium ion battery must be of a type that successfully passed each test in the UN Manual of Tests and Criteria (IBR; see § 171.7 of this subchapter), as specified in § 173.185 of this subchapter, unless approved by the Associate Administrator;
  • (2) An engine or machinery is not subject to the requirements of this subchapter except for § 173.185 of this subchapter and the vessel stowage provisions of column (10) of table § 172.101 of this subchapter, if the following are met:
    (i) Any valves or openings (e.g. venting devices) for liquid fuels must be closed during transport;
    (ii) The engines or machinery must be oriented to prevent inadvertent leakage of dangerous goods and secured by means capable of restraining the engines or machinery to prevent any shifting during transport which would change the orientation or cause them to be damaged;
    (A) Where the engine or machinery contains more than 60 L (16 Gal) of liquid fuel and has a capacity of not more than 450 L (119 Gal), it shall be labeled in accordance with subpart E of part 172 of this subchapter;
    (B) Where the engine or machinery contains more than 60 L of liquid fuel and has a capacity of more than 450 L (119 Gal) but not more than 3,000 L (793 Gal), it shall be labeled on two opposing sides in accordance with § 172.406(e) of this subchapter;
    (C) Where the engine or machinery contains more than 60 L (16 Gal) of liquid fuel and has a capacity of more than 3,000 L (793 Gal), it shall be placarded on two opposing sides in accordance with subpart F of part 172 of this subchapter; and
    (D) For UN 3530 the marking requirements of § 172.322 of this subchapter also apply.
    (A) Where the fuel tank of the engine or mechanical equipment has a water capacity of not more than 450 L (119 Gal), the labeling requirements of subpart E of part 172 of this subchapter shall apply;
    (B) Where the fuel tank of the mechanical equipment has a water capacity of more than 450 L (119 Gal) but not more than 1,000 L (264 Gal), it shall be labeled on two opposing sides in accordance with § 172.406(e) of this subchapter;
    (C) Where the fuel tank of the mechanical equipment has a water capacity of more than 1,000 L (264 Gal), it shall be placarded on two opposing sides in accordance with subpart F of part 172 of this subchapter.
    (v) Except for engines or machinery offered in accordance with paragraph (i)(1) of this section, a shipping paper prepared in accordance with part 172 of this subchapter is required and shall contain the following additional statement “Transport in accordance with § 176.906.” For transportation in accordance with the IMDG Code (IBR, see § 171.7 of this subchapter) the following alternative statement is authorized “Transport in accordance with IMDG Code special provision 363.”

Citations to §173.185(a)

  • (ii) Lithium metal or lithium ion batteries must meet the provisions of § 173.185(a) of this subchapter. Spare batteries—of any type—must be individually protected to prevent short circuits when not in use;
  • (4) For vehicles with batteries installed, the batteries shall be protected from damage, short circuit, and accidental activation during transport. Except for vehicles with prototype or low production lithium batteries (see § 173.185(d) of this subchapter) securely installed, each lithium battery must be of a type that has successfully passed each test in the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter), as specified in § 173.185(a) of this subchapter, unless approved by the Associate Administrator. Where a lithium battery installed in a vehicle is damaged or defective, the battery must be removed and transported according to § 173.185(f) of this subchapter, unless otherwise approved by the Associate Administrator.

Citations to §173.185(b)(3)

  • (2) Packages and overpacks containing articles of Identification Numbers UN3090 and UN3480 prepared in accordance with § 173.185(b)(3) and (c)(4)(vi) must not be stowed on an aircraft next to, in contact with, or in a position that would allow interaction with packages or overpacks containing hazardous materials that bear a Class 1 (other than Division 1.4S), Division 2.1, Class 3, Division 4.1, or Division 5.1 hazard label. To maintain acceptable segregation between packages and overpacks, the segregation requirements shown in the Segregation Table must be followed. The segregation requirements apply based on all hazard labels applied to the package or overpack, irrespective of whether the hazard is the primary or subsidiary hazard.

Citations to §173.185(c)

  • (6) Lithium metal cells and batteries (UN3090) and lithium ion cells and batteries (UN3480) are forbidden for transport as cargo aboard passenger-carrying aircraft. The outside of each package or overpack that contains lithium cells or batteries meeting the conditions for exception in § 173.185(c) of this subchapter and transported in accordance with the Transport Canada TDG Regulations must be marked or labeled in accordance with § 173.185(c)(1)(iii), (iv), and (vi), as appropriate.
  • (iii) UN3481 and UN3091 are not required to appear on the information provided to the pilot-in-command when prepared in accordance with § 173.185(c).

Citations to §173.185(c)(1)

Citations to §173.185(c)(1)(iii)

  • (6) Lithium metal cells and batteries (UN3090) and lithium ion cells and batteries (UN3480) are forbidden for transport as cargo aboard passenger-carrying aircraft. The outside of each package or overpack that contains lithium cells or batteries meeting the conditions for exception in § 173.185(c) of this subchapter and transported in accordance with the Transport Canada TDG Regulations must be marked or labeled in accordance with § 173.185(c)(1)(iii), (iv), and (vi), as appropriate.

Citations to §173.185(c)(1)(iv)

  • (6) Lithium metal cells and batteries (UN3090) and lithium ion cells and batteries (UN3480) are forbidden for transport as cargo aboard passenger-carrying aircraft. The outside of each package or overpack that contains lithium cells or batteries meeting the conditions for exception in § 173.185(c) of this subchapter and transported in accordance with the Transport Canada TDG Regulations must be marked or labeled in accordance with § 173.185(c)(1)(iii), (iv), and (vi), as appropriate.

Citations to §173.185(c)(1)(vi)

  • (6) Lithium metal cells and batteries (UN3090) and lithium ion cells and batteries (UN3480) are forbidden for transport as cargo aboard passenger-carrying aircraft. The outside of each package or overpack that contains lithium cells or batteries meeting the conditions for exception in § 173.185(c) of this subchapter and transported in accordance with the Transport Canada TDG Regulations must be marked or labeled in accordance with § 173.185(c)(1)(iii), (iv), and (vi), as appropriate.

Citations to §173.185(c)(2)

Citations to §173.185(c)(3)

  • (b) For transportation by aircraft, lithium batteries contained in equipment such as data loggers and cargo tracking devices, attached to or placed in packages containing COVID-19 pharmaceuticals, are not subject to the marking and documentation requirements of § 173.185(c)(3) and (c)(4)(iv). This same package, when shipped without the COVID-19 pharmaceuticals for the purpose of use or reuse, is also not subject to the marking and documentation requirements of § 173.185(c)(3) and (c)(4)(iv), as applicable, provided prior arrangements have been made with the operator.
  • (2) From subparts C through H of part 172 of this subchapter when the lithium cell or battery meets the size, packaging, and hazard communication conditions in paragraph (c)(1)-(3) of this section.

Citations to §173.185(c)(4)

  • (1) Articles transported under UN3548, which do not have an existing proper shipping name, and which contain only environmentally hazardous substances where the quantity of the environmentally hazardous substance in the article exceeds 5 L or 5 kg, must be prepared for transport in accordance with this section for transport by air. In addition to the environmentally hazardous substance, the article may also contain lithium cells or batteries that comply with § 173.185(c)(4).

Citations to §173.185(c)(4)(iv)

  • (b) For transportation by aircraft, lithium batteries contained in equipment such as data loggers and cargo tracking devices, attached to or placed in packages containing COVID-19 pharmaceuticals, are not subject to the marking and documentation requirements of § 173.185(c)(3) and (c)(4)(iv). This same package, when shipped without the COVID-19 pharmaceuticals for the purpose of use or reuse, is also not subject to the marking and documentation requirements of § 173.185(c)(3) and (c)(4)(iv), as applicable, provided prior arrangements have been made with the operator.

Citations to §173.185(c)(4)(vi)

  • (2) Packages and overpacks containing articles of Identification Numbers UN3090 and UN3480 prepared in accordance with § 173.185(b)(3) and (c)(4)(vi) must not be stowed on an aircraft next to, in contact with, or in a position that would allow interaction with packages or overpacks containing hazardous materials that bear a Class 1 (other than Division 1.4S), Division 2.1, Class 3, Division 4.1, or Division 5.1 hazard label. To maintain acceptable segregation between packages and overpacks, the segregation requirements shown in the Segregation Table must be followed. The segregation requirements apply based on all hazard labels applied to the package or overpack, irrespective of whether the hazard is the primary or subsidiary hazard.

Citations to §173.185(d)

  • (4) For vehicles with batteries installed, the batteries shall be protected from damage, short circuit, and accidental activation during transport. Except for vehicles with prototype or low production lithium batteries (see § 173.185(d) of this subchapter) securely installed, each lithium battery must be of a type that has successfully passed each test in the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter), as specified in § 173.185(a) of this subchapter, unless approved by the Associate Administrator. Where a lithium battery installed in a vehicle is damaged or defective, the battery must be removed and transported according to § 173.185(f) of this subchapter, unless otherwise approved by the Associate Administrator.

Citations to §173.185(e)

Citations to §173.185(f)

  • (4) For lithium cells or batteries transported in accordance with § 173.185(f), “DAMAGED/DEFECTIVE”; and for lithium cells or batteries transported for purposes of disposal or recycling, “LITHIUM BATTERIES FOR DISPOSAL” or “LITHIUM BATTERIES FOR RECYCLING”, as appropriate.
  • (4) For vehicles with batteries installed, the batteries shall be protected from damage, short circuit, and accidental activation during transport. Except for vehicles with prototype or low production lithium batteries (see § 173.185(d) of this subchapter) securely installed, each lithium battery must be of a type that has successfully passed each test in the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter), as specified in § 173.185(a) of this subchapter, unless approved by the Associate Administrator. Where a lithium battery installed in a vehicle is damaged or defective, the battery must be removed and transported according to § 173.185(f) of this subchapter, unless otherwise approved by the Associate Administrator.

Citations to §173.185(g)

  • (6) For lithium cells and batteries used for a medical device and transported in accordance with § 173.185(g) of this chapter, details on the extent to which the destination(s) of the lithium cell or battery is not serviced daily by cargo aircraft.
  • (b) The Associate Administrator will review an application for an approval, modification of an approval, or renewal of an approval in conformance with the standard operating procedures specified in appendix A of this part (“Standard Operating Procedures for Special Permits and Approvals”). The Associate Administrator will conduct an expedited review process for shipments of lithium cells and batteries specifically used for medical devices, as outlined in § 173.185(g) of this chapter. At any time during the processing of an application, the Associate Administrator may request additional information from the applicant. If the applicant does not respond to a written request for additional information within 30 days of the date the request was received, the Associate Administrator may deem the application incomplete and deny it. The Associate Administrator may grant a 30-day extension to respond to the written request for additional information if the applicant makes such a request in writing.