The Treasury Department effectively expanded eligibility for a lucrative $7,500 consumer EV tax credit.
Inflation and supply-chain disruptions have pushed average EV prices higher.
But proposals to suspend the federal gas tax still faces skepticism from both parties in Congress.
That change of positions has Washington observers scratching their heads.
Diminishing returns from gasoline taxes have spurred the search for new transportation funding mechanisms.
The mask requirement takes effect “immediately,” or as soon as agencies can enact it, the order said.