29. This represents a correction in the formula in Annex 6A and 6B (see Document ECE/TRANS/WP 29/2012/109), respectively for the calculation of Glpg and Gcng refer to fuel consumption (FC) mean as defined in paragraphs 6.1.2.4.3.2 (LPG) and 6.2.2.4.3.2 (CNG)

30. Mr. Dekker stated that this is something new (he recalls that FCnorm is not defined in the Regulation 101). This would correct the problem that the ‘mean’ relates to the average on all the test vehicles while ‘norm’ refers to the specific parent vehicle .

31. Mr. Rijnders suggested that GFV have an informal document for the June GRPE session. This gives GFV time to consider the change and if there are no comments the informal document amending the WP29 document ECE/TRANS/WP.29/2012/109 would be adopted in WP29 158th session.