"It exempts 25,000 American-made vehicles a year from each manufacturer, from costly South Korean safety regulations that critics said were intended solely to discriminate against imports.

It gives American automakers that now have only a toehold in South Korea more leeway to comply with regulations on greenhouse gas emissions and fuel economy as they expand their market share.

It gives the United States more time to phase out a 25 percent tariff on trucks and requires Korea to more quickly reduce its tariff on electric cars.

It includes a safeguard, specific to the auto industry, that would allow tariffs to be reimposed if there were a sudden, unanticipated surge in South Korean auto imports as a consequence of the agreement."