WASHINGTON — Citigroup on Wednesday repaid $20 billion in bailout money and received a government ruling that it's no longer covered by the pay restrictions imposed on companies receiving the most rescue money.

Kenneth Feinberg, the Obama administration's pay czar, said in a letter to the company that the repayment removes Citigroup from restrictions on executive pay and bonuses that were imposed on companies receiving exceptional assistance from the $700 billion bailout fund.

Those restrictions will now cover only insurance giant American International Group and auto companies Chrysler and General Motors and their financing arms. Citigroup last week sold common stock to raise the cash it needed to repay $20 billion of the $45 billion stake the government held in Citigroup. But the Treasury postponed its own plans to begin selling its 34 percent stake in the company because it decided Citi's stock price was too low.

In his letter to the company, Feinberg said that because of the repayment, his approval would not be needed for pay packages received by the company's top executives in 2010. But he said compensation those executives received in 2009 would still be subject to the tighter restrictions.

In October, Feinberg had ruled that the top 25 executives at companies receiving exceptional assistance from the bailout fund, known as the Troubled Asset Relief Program, would have their pay capped in most cases at $500,000 for 2009.

They were required to receive additional compensation in the form of company stock paid out over three years.

Treasury said that with the $45 billion in repayments received from Citgroup as well as Wells Fargo, the government has now been repaid $164 billion in TARP funds.