House of Lords Reform Act 2014 (c. 24)

(1) A member of the House of Lords who is a peer may retire or otherwise resign as a member of the House of Lords by giving notice in writing to the Clerk of the Parliaments. (2) The notice must— (a) specify a date from which the resignation is to take effect, and (b) be signed by the peer and by a witness. (3) At the beginning of that date the peer ceases to be a member of the House of Lords. (4) Resignation may not be rescinded.

(1) A member of the House of Lords who is a peer and does not attend the House of Lords during a Session ceases to be a member of the House at the beginning of the following Session. (2) A peer “does not attend the House of Lords during a Session” if, and only if, the Lord Speaker certifies that the peer— (a) at no time during the Session attended the House, having regard to attendance records kept by officials of the House, and (b) did not have leave of absence in respect of the Session, in accordance with Standing Orders of the House. (3) Subsection (1) does not apply to a peer in respect of attendance during a Session if— (a) the peer was disqualified from sitting or voting in the House, or suspended from its service, for the whole of the Session, or (b) the House resolves that subsection (1) should not apply to the peer by reason of special circumstances. (4) Subsection (1) does not apply in respect of attendance during a Session that is less than six months long. (5) In this section a reference to attendance is a reference to attending the proceedings of the House (including the proceedings of a Committee of the House). (6) This section applies in respect of attendance during the first Session to begin after its coming into force and subsequent Sessions.