Tiktok’s Sale May be in China’s Hands

A change to China’s export rules could give Beijing sign off on any deal that would force the internet giant ByteDance to give up TikTok.

Biden Tightens Cybersecurity Rules, Forcing Trump to Make a Choice

The president’s latest executive order accelerates the move to mandatory compliance by software providers. It may run afoul of the Trump mandate to deregulate.

Toyota Truck Unit Will Pay $1.6 Billion to Settle Emissions Fraud Case

Hino Motors, a Toyota subsidiary, will plead guilty to conspiracy charges and pay penalties for deceiving regulators about its diesel engines, the E.P.A. said.

Lee Zeldin, Trump’s Pick to Head E.P.A., Faces Senate Confirmation Hearing

Mr. Zeldin, a Trump loyalist with little experience in environmental policy, would be charged with dismantling climate rules and perhaps the agency itself.

Doug Burgum, Trump’s Pick for Interior Secretary, Gets His Confirmation Hearing

The former North Dakota governor is expected to face sharp questions about his ties to the oil and gas industry.

What to Know About the E.V. Tax Credit That Trump Might Repeal

Rules for a $7,500 tax break for electric vehicle purchases and leases recently changed, but more far-reaching changes are expected when President-elect Donald J. Trump takes office.

FDA Moves Forward With Last-Minute Push to Cut Nicotine Levels in Cigarettes

In the final days of the Biden administration, the F.D.A. is moving ahead with a proposal to require companies to produce a less addictive product for traditional smokers.

Oil Tycoon Harold Hamm Throwing an Inauguration Day Party

Harold G. Hamm, the founder of the Oklahoma-based Continental Resources, and other oil and gas companies stand to profit from Donald Trump’s energy policies.

Biden Administration Adopts Rules to Guide A.I.’s Global Spread

New rules aim to keep advanced technology out of China and to ensure that cutting-edge artificial intelligence is developed by the United States and its allies.

Inside Elon Musk’s Plan for DOGE to Slash Government Costs

Mr. Musk has turned to Silicon Valley to help recruit executives who will take up unofficial positions across the federal government.