The U.S. Attorney's office in Boston said Friday that Loughlin was being processed at the federal lockup in Dublin.
His wife, Elizabeth Henriquez, was sentenced in March to seven months behind bars.
Lori Loughlin and her husband, Mossimo Giannulli, have agreed to plead guilty to charges related to the college admissions scandal, officials said Thursday.
She was released early as part of a policy regarding inmates who are set to be released on weekends, according to a prison official.
The charge accuses the parents of attempting to bribe officials at an organization that receives federal funding.
Parents Douglas Hodge, Michelle Janavs, Manuel Henriquez and Elizabeth Henriquez entered guilty pleas in Boston's federal court Monday after previously pleading not guilty. Each faces charges of money laundering and conspiracy to commit mail and wire fraud.
As actress Lori Loughlin awaits trial in the college admissions scandal, her two daughters are no longer at USC.
The owner of a California jewelry business has been sentenced to three weeks in prison for paying $15,000 to rig her son's ACT exam.
Oscar-nominated actress Felicity Huffman reported to a federal prison in Northern California Tuesday to begin serving her 14-day sentence for paying to have her daughter's answers corrected on a college-admissions test.
A representative for Felicity Huffman says the actress has reported to a federal prison in California to serve a two-week sentence in the college admissions scandal.
Fifty-four-year-old Peter Jan Sartorio, of Menlo Park, California, was sentenced Friday to a year of probation after pleading guilty in May to a single count of fraud and conspiracy. He is the eighth parent to be sentenced in the scheme.