A collective investment trust (CIT), also called a collective trust fund, is a pooled investment vehicle that combines the money of multiple investors into a single portfolio with a specific investment strategy. CITs are maintained by banks and trust companies. CITs are available to individual investors only through certain tax-qualified retirement plans, like 401(k)s. While CITs are often compared to mutual funds, unlike mutual funds, they generally are not regulated by the SEC. CITs are primarily regulated by the Office of the Comptroller of the Currency or state banking regulators. CITs are a type of collective investment fund. For more information on CITs, and collective investment funds in general, see Collective Investment Funds | OCC.