Regulation 122
(1)
On platform weighing machines and weighbridges fitted with dials, the stamp shall be placed on the plug or stud provided for that purpose on the housing of the instrument.
(2)
On platform weighing machines and weighbridges not fitted with dials, the stamp shall be placed on the said plug or stud in a conspicuous position either on the shoulder or on the opposite end of the steelyard indicator.