The Fiduciary Rule, enacted by the DOL, reinterpreted the "investment advice fiduciary" definition and the exemptions to provisions for a fiduciary in the Employee Retirement Income Security Act of 1974 (ERISA). The new rule was controversial because, among other reasons, it required broker-dealers and other financial professionals to adopt the "best interest" standard, which replaced the DOL's five-part test (and over 40 years of precedent) to determine whether one acted as a fiduciary. In addition, the Fiduciary Rule established the "Best Interest Contract Exemption," which provides a series of requirements to qualify for the exemption and avoid prohibited transaction penalties.