What mandates and laws promote the usage of Earthcars?
Legislation and other programs that encourage the use of Earthcars exist at various levels of government and within many contexts. At the federal level, some examples in the U.S. include Corporate Average Fuel Economy standards, the Clean Air Act and Tier II emissions standards. The IRS offers one-time tax incentives to those who purchase new hybrid and other alternative energy vehicles, and those tax breaks vary in value based on vehicle specifics and sales volumes. Several states, led by California, have enacted laws further limiting the emission outputs of automobiles as a means of promoting clean air standards. Some states and cities allow fuel-efficient and low-emissions outputting vehicles such as hybrid-electrics the privilege to drive in high occupancy vehicle (carpool) lanes without additional passengers, while others designate special and/or free parking spaces for hybrid owners. State rebates on vehicle registration, tax incentives and exemptions from emissions testing are a
