GRPE may wish to consider proposals to amend UN GTRs Nos 15 or 19, if any.
| GRPE-89-28 | ITC Strategy on reducing greenhouse gas emissions: GRPE input |
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| GRPE-89-33 | UN R154 and GTR 15: Alignment with technological progress |
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| GRPE-89-28 | ITC Strategy on reducing greenhouse gas emissions: GRPE input |