1. IWVTA Ambassador - GRPE
Submitted by the expert from OICA
IWVTA-28-07
Review of Approval Numbering in GRPE in view of Schedule 4 of Revision 3 of the 58 Agreement
IWVTA Ambassador - GRPE

2. Status of review:
Without access to approval certificates, the Regulations were reviewed (24, 40, 47, 49, 68, 83, 85, 96, 101, 103, 115, 120, 132, 133 & 143)
The Regulations provide little or no guidance regarding approval numbering but clear instructions and examples of approval marking.
It is understood that these are different subjects but there should be no contradiction between the two.
Some Regulations have a „2 part stage“ e.g.
R49 fuel type (up to 3 characters) and emissions level (1 character)
R96 power band and variable or constant speed (each 1 character)
Some Regulations use symbols as the „stage“ e.g.
R115 uses # or *
R143 uses #, % or *

3. Summary, questions:
Should a separator be prescribed for multi part stages?
Should symbols be avoided?
As the part separator in Schedule 4 is an asterisk, the use of an asterisk in the approval number leads to *** where the first and third asterisks are separators and the second one has meaning.