The Carriage of Explosives by Rail Regulations (Northern Ireland) 2001 No. 387

SCHEDULE 4 Information to be displayed on Containers and WagonsRequirements

Piggyback transport

7.  Where explosives allocated on classification the UN Number 0018, 0019, 0076, 0077, 0143, 0224 or 0301 are carried in a wagon or container, there shall be displayed, in accordance with paragraph 1, subsidiary hazard signs which—

(a) are in the form of the following diagram; and

(b) comply with the measurements in the diagram except that larger measurements, increased proportionally, may be used.