Working draft of the proposed amendment to GTR No. 4 concerning heavy-duty hybrids
Document HDH-DG-07-01
3 December 2013

Version 6 of the draft amendment to introduce provisions for heavy-duty hybrid vehicles and engines into Global Technical Regulation No. 4.

Status: Superseded
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Related and Previous Documents
HDH-03-03
Relates to GTR No. 4 | Heavy-duty Hybrids (HDH) |