# Parliamentary Buildings (Restoration and Renewal) Act 2019, Paragraph 4


(1) A person ceases to be a director of the Delivery Authority on becoming—
(a) a member of either House of Parliament,
(b) a Minister of the Crown,
(c) a member of either of the House Commissions,
(d) the Corporate Officer of the House of Commons or the Corporate Officer of the House of Lords, or
(e) employed (under a contract of employment) by the House of Commons Commission, by the Corporate Officer of the House of Lords or by the Corporate Officers as a member of staff of a joint department of the two Houses.
(2) But sub-paragraph (1)(a) and (e) does not apply in the case of a director within paragraph 1(1)(c).

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Source: https://www.legislation.gov.uk/ukpga/2019/27/schedule/2/paragraph/4 (the official version)
Page: https://openlegislation.uk/parliamentary-buildings-restoration-and-renewal-act-2019/schedule-2/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.