21 Mar 2011 Draft regulation on requirements for retrofit emission control devices for heavy duty vehicles equipped with engines type approved according to Regulation No. 49 and NRMM and tractors with engines type approved according to Regulation No. 96 REC-04-03 2011-03-21
21 Mar 2011 Measuring Procedure for the Determination of Nitrogen Dioxide Emissions from Diesel Engines Fitted with Particulate Reduction Systems (UBA) REC-04-04 2011-03-21
4 May 2011 Attendance list for the 4th REC informal group session REC-04-05 2011-05-04