You will require this licence if you intend to transport radioactive substances. This licence allows you to transport any radioactive substance either by road, rail, air or sea. The person operating the vehicle transporting the radioactive substance must hold the licence. A person helping the licensee is not required to hold an additional licence.
You can apply for this licence as a company or individual. You can contact the agency using 'pre-application technical advice' to get advice specific to your situation or purpose.