WASHINGTON (Dow Jones Newswires)–The U.S. Treasury Department on Tuesday will unveil a new credit initiative that could spur $20 billion in lending to small businesses and could be beneficial to small minority-owned firms.

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Specific details on Treasury’s new initiative are likely to be discussed Tuesday afternoon at a congressional hearing, where Gene Sperling, senior counsel to Treasury Secretary Timothy Geithner, will testify about the Obama administration’s $30 billion small business lending fund and this new program.

In an interview, Sperling…