7. If dangerous goods are being carried in tanks, a telephone number where specialist advice concerning the dangerous goods in question may be obtained in English at any time during carriage shall be displayed—
(a)in the immediate vicinity of each orange-coloured plate; and
(b)against an orange-coloured background in black digits of not less than 30mm in height.
Commencement Information
I1Sch. 1 para. 7 in operation at 9.4.2010, see reg. 1