§ 2550.407a-1 General rule for the acquisition and holding of employer securities and employer real property.
(a) In general. Section 407(a)(1) of the Employee Retirement Income Security Act of 1974 (the Act) states that except as otherwise provided in section 407 and section 414 of the Act, a plan may not acquire or hold any employer security which is not a qualifying employer security or any employer real property which is not qualifying employer real property. Section 406(a)(1)(E) prohibits a fiduciary from knowingly causing a plan to engage in a transaction which constitutes a direct or indirect acquisition, on behalf of a plan, of any employer security or employer real property in violation of section 407(a), and section 406(a)(2) prohibits a fiduciary who has authority or discretion to control or manage assets of a plan to permit the plan to hold any employer security or employer real property if he knows or should know that holding such security or real property violates section 407(a).