The proposal concerns specifications on category G of road tractors, extracting from and revising document GRB/2012/12 pursuant to discussions from the last Working Party on Noise session.

The proposal concerns specifications on the formulation of requirements on noise, revising the earlier document GRB/2012/12 pursuant to discussions from the last Working Party on Noise session.

Updated tables for proposed vehicle internal noise limits, revising document GRB/2012/12 pursuant to discussions from the last Working Party on Noise session.

The proposal concerns modification of the method of measuring vehicle internal noise and revises document GRB/2012/12 pursuant to discussions from the last Working Party on Noise session.

Presentation in support of Russian proposals on specifications for category G road tractors, formulation of requirements on noise, modification of the method for measuring vehicle internal noise, and recommended permissible levels of vehicle internal noise.