UNITED

NATIONS

Distr.

GENERAL

TRANS/WP.29/625	2 June 1998

ENGLISH

Original: ENGLISH

and FRENCH

INLAND TRANSPORT COMMITTEE

Working Party on the Construction of Vehicles

CORRIGENDUM 2 TO THE 02 SERIES OF AMENDMENTS

TO REGULATION No. 51

(Noise of M and N categories of vehicles)

Note: The text reproduced below was adopted by the Administrative Committee (AC.1) of the amended 1958 Agreement at its eighth session, following the recommendation by the Working Party at its one-hundred-and-fourteenth session.

It is based on document TRANS/WP.29/1998/10, as corrected (TRANS/WP.29/609,

paras. 70 and 121).

GE.98-

Annex 3,

Paragraph 3.1.2.4.2.1., add at the end the following text (including also a new footnote 5/):

"....

However, if during the test, in the case of vehicles having more than two separate gears, there is an automatic down-shift to first gear, this down- shift may be avoided, at the manufacturer's choice, either by:

Increasing the speed of the vehicle VA to a maximum of 60 km/h; or

by

Maintaining the speed VA at 50 km/h with the fuel supply to the

engine limited to 95 per cent of the supply necessary for full load. 5/

5/	Note: This condition shall be considered satisfied in the case of a positive-ignition engine when the angle of opening of the throttle is 90 per cent, and, in the case of a compression-ignition engine, when the movement of the feed-rack of the injection pump is limited to 90 per cent of its stroke."