US President Barack Obama on Saturday nominated three prominent experts in international finance and legal issues for top positions at the Department of Treasury.

According to a statement released by the White House, Helen Elizabeth Garrett was named assistant secretary for tax policy, Michael Barr was nominated for the job of assistant secretary for financial institutions, and George Madison was appointed general counsel.

All three still need to be confirmed by the Senate.

"The Treasury Department will be well-served by the expertise and commitment of these fine individuals," Obama said in a statement.

He expressed the confidence the three "will be valuable and effective additions" to his economic team.