The decision, contained in a letter from Mr. Biden to Congress that the White House made public, comes as a wave of coronavirus cases driven by the highly transmissible Omicron variant recedes in the United States, and many states and localities ease pandemic restrictions.

But the pandemic is taking a continuing toll on the country. As of Friday, more than 75,000 Americans were hospitalized with the virus. Deaths, which lag case counts by as much as several weeks, are increasing in 14 states, and remain at almost 2,300 a day nationally.

“The Covid-19 pandemic continues to cause significant risk to the public health and safety of the nation,” Mr. Biden wrote in the letter. “More than 900,000 people in this nation have perished from the disease, and it is essential to continue to combat and respond to Covid-19 with the full capacity and capability of the federal government.”