Section 124(6) in The Central Motor Vehicles Rules, 1989
(6)[ The fuel tank of agricultural tractors shall conform to AIS: 104-2008, as amended from time to time:] [Substituted by Notification No. G.S.R. 291 (E) dated 24.4.2014]Provided that the clause 3.2.1 of IS:12056 -1987 be exempted for agricultural tractor that have a gravity feed fuel flow system.