Beijing will take the lead in executing the fifth stage vehicle emission standard (Beijing V Emission Standard).
The capital will raise its auto-emission standards on Feb 1, making them the strictest in the nation in a move to reduce auto pollution by 40 percent.
Car owners will have greater consumer protection through the nation's first mandated auto warranties formally adopted by the General Administration of Quality Supervision, Inspection and Quarantine last week.
A new regulation released last week and due to take effect on May 1 removes the former maximum lifespan of 15 years on private cars.
The Ministry of Environmental Protection has completed the second draft of the National V Standard, the emission limit and method of measurement for light passenger vehicles.
China has issued the Regulation on the Responsibility Involving Repairing, Replacing and Returning of Household-use Vehicles on Jan 15, specifying the "three guarantees" conditions.
Jinan, capital of Shandong province, implemented a temporary rule on Wednesday requiring drivers to use cars on alternate days, as heavy smog continued to shroud many parts of the country.
The General Administration of Quality Supervision, Inspection and Quarantine has issued the Regulation on the Responsibility Involving Repairing, Replacing and Returning of Household-use Vehicles (NO 150 order of the administration) on Jan 15, 2013.
Beijing will continue to lower emissions of major pollutants including sulfur dioxide, nitrogen oxides, chemical oxygen demand and ammonia nitrogen this year.
China expects to have 39,700 energy-efficient and new-energy vehicles in operation by the end of March 2013.
Beijing will continue to limit new vehicle registrations through a lottery system next year to hold down the number of vehicles on the road.
The sudden decision to limit vehicle registrations in Guangzhou has disrupted the plans of many residents to buy cars in the southern metropolis.