Section 124(7) in The Central Motor Vehicles Rules, 1989
(7)The wheel nuts and hub caps used in agricultural tractor [and combine harvesters] [Inserted by Notification No. G.S.R. 212 (E) dated 20.3.2015 (w.e.f. 1.4.2015)] shall be in accordance with IS:13941 -1994, as amended from time to time.]
