There's no listed requirement, other than that it must be on the list. The landing page for the list even says: >A list of vehicles that meet the LEED Low Emit

There's no listed requirement, other than that it must be on the list. The landing page for the list even says: >A list of vehicles that meet the LEED Low Emitting and Fuel Efficient Vehicles requirements from model years 1998 - 2023.