Under IATA 3.6.2
184.108.40.206.2.1 Category A: UPS does not accept materials with this classification.
220.127.116.11.2.2 Category B: Biological substance, Category B refers to infectious substances not meeting the criteria for inclusion in Category A, and must be assigned to UN3373. These materials do not cause life threatening or fatal disease or permanent disability in humans when exposure occurs. UPS will only accept UN3373 on a contractual basis internationally.
Examples may include: Human or animal excreta, secreta, blood tissue, bodily fluids, etc.
The IATA Regulations require that shipments containing Biological substance, Category B materials are triple packaged according to Packing Instruction 650. The triple packaging consists of the following:
- A leak proof primary receptacle
- A leak proof secondary packaging
- An outer rigid packaging of adequate strength for its capacity, mass and intended use
Each completed package must be able capable of passing the IATA drop test described in 18.104.22.168 from a height of not less than 1.2 m. For liquids, absorbent material in sufficient quantity to absorb the entire contents must be placed between the primary receptacle(s) and the secondary packaging.
Packages containing UN3373 materials must be clearly marked with the proper shipping name of "Biological substance, Category B" with the characters being at least 6 mm high. Packages must also have the mark illustrated in Packing Instruction 650 clearly and legibly displayed on the external surface of the outer packaging adjacent to the proper shipping name. The UN3373 mark must be in a square on point configuration (diamond shaped) with each side being a minimum of 50 mm (or 2 inches) in length with the UN3373 characters being at least 6 mm in height.