Under the Companies Act a parent company is not required to prepare consolidated financial statements for a financial year in which the group headed by that company qualifies as a small group or a medium-sized group. A group is not eligible for exemption if any member of the group is a public company or a body corporate that has power under its constitution to offer its shares or debentures to the public and may lawfully exercise that power; an authorized institution under the Banking Act 1987; an insurance company; or an authorized person under the Financial Services Act 1986. Under the Companies Act and Financial Reporting Standard 2, Accounting for Subsidiary Undertakings, a parent undertaking is exempt from preparing group accounts when it is itself a subsidiary of a parent company in the European Union and consolidated financial statements are prepared at the highest level. Also, a parent undertaking is exempt from preparing group accounts when all of its subsidiaries are excluded. See exclusion of subsidiaries from consolidation.