2. The mark shall be of the following generalised type— “VRI/Number/Type Code”, where—
(a)“VRI” represents the international vehicle registration identification code of the state issuing the certificate;
(b)“Number” represents the number assigned by the competent authority, which shall be unique with regard to the particular design or shipment; and
(c)“Type Code” represents the code used to indicate the type of approval certificate issued as follows—
| AF | Type A package design for fissile material |
| B(U) | Type B(U) package design, (B(U)F if for fissile material) |
| B(M) | Type B(M) package design, (B(M)F if for fissile material) |
| IF | Industrial package design for fissile material |
| S | Special form radioactive material |
| T | Shipment |
| X | Special arrangement |