According to a report from the BBC, Huffman was charged with conspiracy to commit mail fraud and honest services mail fraud.
The indictment unsealed in Boston says 33 wealthy parents, including the two actresses, bribed college entrance exam administrators to get their children into Ivy-league and other high-profile schools.
Authorities said the crimes date back to 2011, and the defendants used "bribery and other forms of fraud to facilitate their children's admission" to numerous college and universities, including Georgetown, Yale, Stanford, the University of Texas, the University of Southern California, and the University of California Los Angeles, among others. 'Beginning in or about 2011, and continuing through the present, the defendants - principally individuals whose high-school age children were applying to college - conspired with others to use bribery and other forms of fraud to facilitate their children's admission to colleges and universities in the District of MA and elsewhere.' the indictment said.
CNN is working to get comment from the actresses' representatives. Huffman's husband, William H. Macy, is not.
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Huffman is accused of paying $15,000 to an organization that then facilitated cheating for her daughter on the SATs, the indictment said.
"This case is about the widening corruption of elite college admissions through the steady application of wealth combined with fraud", Lelling said.
Federal authorities have charged college coaches and others in a sweeping admissions bribery case in federal court.
US attorney Andrew Lelling said the plot was set up to guarantee admissions to top colleges for students, in his words, "not on their merits, but through fraud". Her husband, fashion designer Mossimo Giannulli, was arrested at their home. Huffman also discussed the scheme in a recorded phone call with a cooperating witness, the indictment said.
Meredith coordinated with William Rick Singer, who operated a for-profit college counseling service that, the feds found, regularly paid bribes to college coaches either directly or through donations to the program to create fake recruiting profiles.
Singer, of Newport Beach, Calif., pleaded guilty Tuesday in U.S. District Court in Boston to charges including racketeering conspiracy and obstruction of justice.