What do you mean? CAFE standard apply to both foreign and domestic production and by tax policy are you asking for tariffs?
Cafe standards greatly effect US Auto makers as the US Auto makers are successful with larger vehicles SUVs, Trucks, etc. Let Americans buy what they wish without the market distortions of Cafe.
The US Tax code gives a $3000 subsidy to hybrid buyers (Toyota and Honda cars made in Japan).Let Americans buy what they wish without the market distortions of hybrid subsidies. Hybrids shouldn't need subsidies if they are so great.