The move to create a so-called cap-and-trade system would be a substantial step by the world’s largest polluter to reduce emissions from major industries, including steel, cement, paper and electric power.

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WASHINGTON — President Xi Jinping of China will make a landmark commitment Friday to start a national program in 2017 that will limit and put a price on greenhouse-gas emissions, Obama administration officials said Thursday.

The move to create a so-called cap-and-trade system would be a substantial step by the world’s largest polluter to reduce emissions from major industries, including steel, cement, paper and electric power.

The announcement, to come during a White House summit meeting with President Obama, is part of an ambitious effort by China and the United States to use their leverage internationally to tackle climate change and to pressure other nations to do the same.

Joining forces on the issue even as they are bitterly divided on others, Obama and Xi will spotlight the shared determination of the leaders of the world’s two largest economies to forge a climate-change accord in Paris in December that commits every country to curbing their emissions.

Xi’s pledge illustrates China’s intention to act quickly and upends what has long been a potent argument among Republicans against acting on climate change: that the United States’ most powerful economic competitor has not done so. It is not clear whether China will be able to enact and enforce a program that substantially limits emissions.

China’s economy depends heavily on cheap coal-fired electricity, and the country has a history of balking at outside reviews of its industries. China has also been plagued by major corruption cases, particularly among coal companies.

But the agreement, which U.S. officials said had been in the works since April, is China’s first commitment to a specific plan to carry out what have, so far, been general ambitions.

Domestic and external pressures have driven the Chinese government to take firmer action to curb emissions from fossil fuels, especially coal. Growing public anger about the noxious air that often envelops Beijing and many other Chinese cities has prompted the government to introduce restrictions on coal and other sources of smog, with the side benefit of reducing carbon-dioxide pollution. Authorities in China also see economic benefits in reducing fossil-fuel use.

The cap-and-trade initiative builds on a deal Obama and Xi reached last year in Beijing, where both set steep emissions-reduction targets as a precursor to the global-climate accord. Obama, who has made climate change a signature issue of his presidency, announced the centerpiece of his plan this year. With his announcement Friday, Xi will outline how he will halt the growth of China’s emissions by 2030.

“It increases our probability of succeeding, and it increases the likelihood that we will have a more robust agreement” in Paris, one senior administration official said, speaking on condition of anonymity.

The climate deal will be a substantial, if rare, bright spot in a meeting that is expected to be dominated by potential sources of friction between Obama and Xi. The two leaders began meeting Thursday night with a working dinner at Blair House, across from the White House.

The president plans to raise a number of contentious topics Friday, Obama administration aides said, including cyberattacks on U.S. companies and government agencies; China’s increasingly aggressive reclamation of islands and atolls in disputed areas of the South China Sea; and Xi’s clampdown on dissidents and lawyers in China.

Under a cap-and-trade system, a concept created by U.S. economists, governments place a cap on the amount of carbon pollution that may be emitted annually. Companies then can buy and sell permits to pollute. Western economists have long pushed the idea as a market-driven way to drive industry to cleaner forms of energy, by making polluting energy more expensive.

Xi will pledge to put in place a “green dispatch” program intended to create a price incentive for generating power from low-carbon sources, officials said. He will agree to help provide financing to poorer countries to help them pay for projects that reduce harmful emissions. And China, one of the world’s largest financiers of infrastructure projects, will agree to “strictly limit” the amount of public financing that goes toward high-carbon projects, another official said, in line with a 2013 commitment by the U.S. Treasury Department to cease public financing for new coal-fired power plants around the world.

China has been developing and implementing smaller cap-and-trade programs for at least three years. In 2012, it started pilot programs in seven provinces, intended to serve as tests for a national program.

Last week, Chinese officials met in Los Angeles with top environmental officials from California, which has enacted an aggressive state-level cap-and-trade program. People who attended the talks said they were meant to pave the way for a possible linkage of the Chinese and California cap-and-trade systems.