Order of the National Green Tribunal in the matter of S.K. Goyal Vs. Chairperson, CPCB & Ors. dated 23/12/2016 regarding emissions of diesel locomotive engines. National Green Tribunal directs MoEF to submit a complete and comprehensive report as to whether
(1) the study of 30 locomotive engines is not sufficient to be considered for prescription of standard
(2) if the study is insufficient reasons thereof and what steps are required to be taken