Singapore legislation
Regulation 12
of Radiation Protection (Transport of Radioactive Materials) Regulations
Regulation 12
Stowing for transport
Subregulation 1
A licensed carrier of any consignment of radioactive materials shall ensure that the consignment is stowed securely and in accordance with this regulation.
Subregulation 2
If the average surface heat flux does not exceed 15 W/m2 and the immediately surrounding cargo is not in sacks or bags, a package or overpack may be carried among packaged general cargo without any special stowage provisions except as may be specifically required by the competent authority of the country of origin or by the Chief Executive in a certificate of approval.
Subregulation 3
Except in the case of shipment under special arrangement, mixing of packages of different kinds of radioactive material, including fissile material, and mixing of different kinds of packages with different transport indexes is permitted without specific approval by the Chief Executive.
Subregulation 4
Subject to regulation 21(2), loading of tanks and freight containers and accumulation of packages, overpacks, tanks and freight containers shall be as follows:
the total number of packages, overpacks, tanks and freight containers aboard a single conveyance shall be so limited that the total sum of the transport indexes aboard the conveyance does not exceed the values shown in Table 6 of the Third Schedule;
the radiation level under conditions likely to be encountered in routine transport shall not exceed 2 mSv per hour at any point on, and 0.1 mSv per hour at 2 m from, the external surface of the conveyance.
Subregulation 5
Paragraph (4)(a) shall not apply to consignments of LSA-I material.
Subregulation 6
The total sum of the criticality safety indexes in a freight container and aboard a conveyance shall not exceed the values shown in Table 7 of the Third Schedule.
Subregulation 7
Any package or overpack having either a transport index greater than 10, or any consignment having a criticality safety index greater than 50, shall be transported only under exclusive use.