1. Special Provisions

49 CFR 172 Special Provisions – A-Codes

These provisions apply only to transportation by aircraft.
CodeDescription
A60A60 Sterilization devices, when containing less than 30 mL per inner packaging with not more than 150 mL per outer packaging, may be transported in accordance with the provisions in Sec. 173.4a, irrespective of Sec. 173.4a(b), provided such packagings were first subjected to comparative fire testing. Comparative fire testing between a package as prepared for transport (including the substance to be transported) and an identical package filled with water must show that the maximum temperature measured inside the packages during testing does not differ by more than 200 [deg]C (392[emsp14][deg]F). Packagings may include a vent to permit the slow escape of gas (i.e. not more than 0.1 mL/hour per 30 mL inner packaging at 20 [deg]C (68[emsp14][deg]F) produced from gradual decomposition. The requirements of Sec. Sec. 173.24(g)(1) and 173.27(c) do not apply. Browse A60
A61
  • a. When used for purposes such as sterilization, inner packagings of peroxyacetic acid, stabilized, classified as UN 3107 Organic peroxide type E, liquid or UN 3109 Organic peroxide type F, liquid may be fitted with a vent consisting of hydrophobic membrane, provided:
    • (1) Each inner packaging contains not more than 70 mL;
    • (2) The inner packaging is designed so that the vent is not immersed in liquid in any orientation;
    • (3) Each inner packaging is enclosed in an intermediate rigid plastic packaging with a small opening to permit release of gas and contains a buffer that neutralizes the contents of the inner packaging in the event of leakage;
    • (4) Intermediate packagings are packed in a fiberboard box (4G) outer packaging;
    • (5) Each outer packaging contains not more than 1.4 L of liquid; and
    • (6) The rate of oxygen release from the outer packaging does not exceed 15 mL per hour.
  • b. Such packages must be transported on cargo aircraft only. The requirements of Sec. Sec. 173.24(g)(1) and 173.27(c) do not apply.
Browse A61
A82The quantity limits in columns (9A) and (9B) do not apply to human or animal body parts, whole organs or whole bodies known to contain or suspected of containing an infectious substance.Browse A82
A100 Primary (non-rechargeable) lithium batteries and cells are forbidden for transport aboard passenger-carrying aircraft. Secondary (rechargeable) lithium batteries and cells are authorized aboard passenger-carrying aircraft provided the net weight of lithium batteries does not exceed 5 kg (11 pounds) per package.Browse A100
A101In addition to the applicable requirements of §173.185, the quantity of lithium metal in the batteries contained in any piece of equipment must not exceed 12 g per cell and 500 g per battery.Browse A101
A103Equipment is authorized aboard passenger-carrying aircraft provided the net weight of lithium batteries does not exceed 5 kg (11 pounds) per package.Browse A103
A104The net weight of secondary lithium batteries or cells contained in equipment may not exceed 5 kg (11 pounds) in packages that are authorized aboard passenger carrying aircraft.Browse A104
A105The total net quantity of dangerous goods contained in one package, excluding magnetic material, must not exceed the following:
  • a. 1 kg (2.2 pounds) in the case of solids;
  • b. 0.5 L (0.1 gallons) in the case of liquids;
  • c. 0.5 kg (1.1 pounds) in the case of Division 2.2 gases; or
  • d. any combination thereof.
Browse A105
A112Notwithstanding the quantity limits shown in Column (9A) and (9B) for this entry, the following IBCs are authorized for transportation aboard passenger and cargo-only aircraft. Each IBC may not exceed a maximum net quantity of 1,000 kg:
  • a. Metal: 11A, 11B, 11N, 21A, 21B and 21N
  • b. Rigid plastics: 11H1, 11H2, 21H1 and 21H2
  • c. Composite with plastic inner receptacle: 11HZ1, 11HZ2, 21HZ1 and 21HZ2
  • d. Fiberboard: 11G
  • e. Wooden: 11C, 11D and 11F (with inner liners)
  • f. Flexible: 13H2, 13H3, 13H4, 13H5, 13L2, 13L3, 13L4, 13M1 and 13M2 (flexible IBCs must be sift-proof and water resistant or must be fitted with a sift-proof and water resistant liner).
Browse A112
A189Except where the defining criteria of another class or division are met, concentrations of formaldehyde solution:
  • a. With less than 25 percent but not less than 10 percent formaldehyde, must be described as UN3334, Aviation regulated liquid, n.o.s.; and
  • b. With less than 10 percent formaldehyde, are not subject to this subchapter.
Browse A189
A191Notwithstanding the Division 6.1 subsidiary risk for this description, the toxic subsidiary risk label and the requirement to indicate the subsidiary risk on the shipping paper are not required for manufactured articles containing less than 5 kg (11 pounds) of mercury.Browse A191
A200These articles must be transported as cargo and may not be carried aboard an aircraft by passengers or crewmembers in carry-on baggage, checked baggage, or on their person unless specifically authorized in §175.10.Browse A200