21 ) . The group of volunteers was asked to consider possible incorporation of this part of the Russian proposal into the draft amended text of chapter 10B ( TRANS/SC.3/WP.3/AC.2/2000/1/Add.1 ) taking into account provisions in force within the Central Commission for the Navigation of the Rhine ( CCNR ) and the Danube Commission as reflected in TRANS/SC.3/WP.3/R.28 and Corr.1 and in TRANS/SC.3/WP.3/R.68 .