| GFV-43-07 | Dual-fuel retrofit emissions: Is a simple measurement procedure possible? | |
| GFV-43-02 | Heavy-duty Dual Fuel Retrofit regulation draft text | |
| GFV-43-04 | Working draft of the proposed heavy-duty dual fuel retrofit regulation | |
| GFV-43-01 | Draft agenda for the 43rd GFV informal group session |