Revision 3 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2012/79, WP.29/2010/101, and WP.29/2010/28. This document incorporates the following changes:

Proposal as adopted by the Working Party on Lighting and Light-Signalling (GRE) at its sixty-seventh session to introduce provisions for the use of light-emitting diode (LED) light sources into UN R91 per the proposed draft Regulation (Documents WP.29/2010/44 and Corr.1).

Revision 3 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 3 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 3 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change: