MOSCOW — The Russian government declared the broadcasters Voice of America and Radio Free Europe/Radio Liberty “foreign agents” on Tuesday, in retaliation for a similar action against Russian state-run news outlets in the United States.

The Kremlin-financed television station RT America complied last month with an order from the Justice Department that they register as foreign agents. This followed a report by American intelligence agencies in January that concluded that the Kremlin was using RT America as a tool “to undermine faith in the U.S. government and fuel political protest.”

Russian lawmakers and government representatives were infuriated by the decision, rushing through the retaliatory legislation within days. President Vladimir V. Putin signed the law at the end of November.

But earlier fears that the law might extend the registration requirement to major Western news organizations were allayed when the act made no mention of them. Andrei Klimov, a senator, told the state-run news agency RIA Novosti on Tuesday that the list would not be expanded unless the American authorities took similar action on their side.