Proposal for an optional passing beam pattern for new draft regulations no. OO, Uniform provisions concerning the approval of motor vehicle headlamps emitting an asymmetrical passing beam or a driving beam or both and equipped with filament lamps (document TRANS/WP.29/GRE/R.261) ; No. MH, Uniform provisions concerning the approval of motor vehicle headlamps emitting a symmetrical passing beam or a driving beam or both and equipped with filament lamps (document TRANS/WP.29/GRE/R.262) / transmitted by the expert from the United States of America.