http://www.legislation.gov.uk/ukpga/1996/23/section/73Arbitration Act 1996An Act to restate and improve the law relating to arbitration pursuant to an arbitration agreement; to make other provision relating to arbitration and arbitration awards; and for connected purposes.1996-06-17texttext/xmlenStatute Law Database2025-08-05Expert Participation2025-08-01 Part I731If a party to arbitral proceedings takes part, or continues to take part, in the proceedings without making, either forthwith or within such time as is allowed by the arbitration agreement or the tribunal or by any provision of this Part, any objection—athat the tribunal lacks substantive jurisdiction,bthat the proceedings have been improperly conducted,cthat there has been a failure to comply with the arbitration agreement or with any provision of this Part, ordthat there has been any other irregularity affecting the tribunal or the proceedings,he may not raise that objection later, before the tribunal or the court, unless he shows that, at the time he took part or continued to take part in the proceedings, he did not know and could not with reasonable diligence have discovered the grounds for the objection.2Where the arbitral tribunal rules that it has substantive jurisdiction and a party to arbitral proceedings who could have questioned that ruling—aby any available arbitral process of appeal or review, orbby challenging the award,does not do so, or does not do so within the time allowed by the arbitration agreement or any provision of this Part, he may not object later to the tribunal’s substantive jurisdiction on any ground which was the subject of that ruling.Pt. 1 excluded (E.W.) (1.11.1996) by 1996 c. 56, s. 336(4), 476(4), 582(4), Sch. 40, para. 4 (with s. 1(4))Pt. 1 excluded (31.1.1997) by 1988 c. 8, s. 6 (as substituted (31.1.1997) by 1996 c. 23, s. 107(1), Sch. 3 para. 49; S.I. 1996/3146, art. 3 (with art. 4, Sch. 2))Pt. 1 excluded (N.I.) (1.3.1999) by S.I. 1998/3162 (N.I. 21), art. 89(6); S.R. 1999/81, art. 3Pt. 1 (ss. 1-84) excluded (E.W.) by 1998 c. 14, s. 16(9) (which is in force: at 4.3.1999 for specified purposes by S.I. 1999/528, art. 2(a), Sch.; at 5.7.1999 for specified purposes by S.I. 1999/1958, art. 2(1)(b), Sch. 1 (with transitional provisions in Sch. 12, and as amended by S.I. 1999/3178, art. 3(20), Sch. 20); at 6.9.1999 for specified purposes by S.I. 1999/2422, art. 2(c), Sch. 1 (subject to transitional provisions in Sch. 14, and as amended by S.I. 1999/3178, art. 3(20), Sch. 20); at 5.10.1999 for specified purposes by S.I. 1999/2739, art. 2, Sch. 1 (subject to transitional provisions in Sch. 2); at 18.10.1999 for specified purposes by S.I. 1999/2860, art. 2(c), Sch. 1 (subject to transitional provisions in Schs. 16-18, and as amended by S.I. 1999/3178, art. 3(20), Sch. 20); 29.11.1999 for specified purposes by S.I. 1999/3178, art. 2(1), Sch. 1 (subject to transitional provisions in s. 5 and Schs. 21-23)Pt. 1 (ss. 1-84) excluded by S.I. 1998/1506 (N.I. 10), art. 16(9) (which is in force: at 10.3.1999 for specified purposes by S.R. 1999/102, art. 2(a), Sch. Pt. 1; at 5.7.1999 for specified purposes by S.R. 1999/310, art. 2(1)(b), Sch. 1; at 6.9.1999 for specified purposes by S.R. 1999/371, art. 2(b), Sch. 1; at 5.10.1999 for specified purposes by S.R. 1999/407, art. 2(b), Sch.; at 18.10.1999 for specified purposes by S.R. 1999/428, art. 2(b), Sch. 1; at 29.11.1999 for specified purposes by S.R. 1999/472, art. 2(1), Sch. 1)Pt. 1 excluded (E.W.) (1.9.2000) by 1999 c. 14, ss. 9(4), 14(2); S.I. 2000/2337, art. 2(1)(e)Pt. 1 excluded (N.I.) (22.11.2000 for specified purposes and otherwise 2.7.2001) by 2000 c. 4, ss. 59, 68, Sch. 7 para. 10 (with s. 66(6)); S.R. 2000/358, art. 2, Sch. Pt. 2; S.R. 2001/141, art 2(1)(c), Sch. Pt. 1 excluded (E.W.) (2.7.2001) by 2000 c. 19, s. 68, Sch. 7 para. 10(8) (with s. 83(6)); S.I. 2001/1252, art. 2(2)(a)(i)Pt. 1: specified provisions applied (with modifications) (N.I.) (28.4.2002) by Labour Relations Agency Arbitration Scheme Order (Northern Ireland) 2002 (S.R. 2002/120), art. 3, Sch.Pt. 1 excluded (22.2.2005 for specified purposes and otherwise 6.4.2005) by Pensions Appeal Tribunals Act 1943 (c. 39), s. 6D(8) (as inserted by Armed Forces (Pensions and Compensation) Act 2004 (c. 32), ss. 5, 8, Sch. 1 para. 4); S.I. 2005/356, art. 2, {Sch. 1, 2}Pt. 1 excluded (N.I.) (1.3.2005 for specified purposes and otherwise 1.4.2005) by Health and Personal Social Services (Quality, Improvement and Regulation) (Northern Ireland) Order 2003 (S.I. 2003/431 (N.I. 9)), art. 44(4); S.R. 2005/44, arts. 2, 3, Schs. 1, 2 (subject to arts. 4-13)Pt. 1 excluded (N.I.) (1.9.2005) by The Special Educational Needs and Disability (Northern Ireland) Order 2005 (S.I. 2005/1117 (N.I. 6)), art. 23(5) (with arts. 46, 47); S.R. 2005/336, art. 2, Sch.Pt. 1 excluded (N.I.) (1.9.2005) by The Education (Northern Ireland) Order 1996 (S.I. 1996/274 (N.I. 1)), art. 23(4) (as substituted by The Special Educational Needs and Disability (Northern Ireland) Order 2005 (S.I. 2005/1117 (N.I. 6)), Sch. 5 para. 7(4); S.R. 2005/336, art. 2, Sch.)Pt. 1: power to exclude or restrict conferred (19.9.2007) by virtue of Tribunals, Courts and Enforcement Act 2007 (c. 15), ss. 22, 148, Sch. 5 para. 14; S.I. 2007/2709, art. 2(i)Pt. 1 excluded (3.11.2008) by The Tribunal Procedure (First-tier Tribunal) (Social Entitlement Chamber) Rules 2008 (S.I. 2008/2685), rule 3(2)Pt. 1 excluded (3.11.2008) by The Tribunal Procedure (First-tier Tribunal) (War Pensions and Armed Forces Compensation Chamber) Rules 2008 (S.I. 2008/2686), rule 3(2)Pt. 1 excluded (3.11.2008) by The Tribunal Procedure (Upper Tribunal) Rules 2008 (S.I. 2008/2698), rule 3(2)Pt. 1 excluded (3.11.2008) by The Tribunal Procedure (First-tier Tribunal) (Health, Education and Social Care Chamber) Rules 2008 (S.I. 2008/2699), rule 3(2)Pt. 1 excluded (1.4.2009) by The Tribunal Procedure (First-tier Tribunal) (Tax Chamber) Rules 2009 (S.I. 2009/273), rule 3(2)Pt. 1 excluded (1.9.2009) by The Tribunal Procedure (First-tier Tribunal) (General Regulatory Chamber) Rules 2009 (S.I. 2009/1976), rule 3(2)Pt. 1 excluded (4.8.2010 for specified purposes and otherwise 1.10.2010) by Equality Act 2010 (c. 15), ss. 116(3), 216(3), Sch. 17 para. 6(6); S.I. 2010/1736, art. 2, Sch.; S.I. 2010/1966, art. 2; S.I. 2010/2317, art. 2(9)(k)(i) (with art. 15)Pt. 1 excluded (1.7.2013) by The Tribunal Procedure (First-tier Tribunal) (Property Chamber) Rules 2013 (S.I. 2013/1169), art. 1(1) rule 4(2) (with art. 2)Pt. 1 excluded (2.11.2020 for specified purposes, 1.9.2021 in so far as not already in force) by Additional Learning Needs and Education Tribunal (Wales) Act 2018 (anaw 2), ss. 75(4), 100(3); S.I. 2020/1182, reg. 3(1)(i); S.I. 2021/373, art. 8(g)Pt. 1 modified (24.3.2022) by Commercial Rent (Coronavirus) Act 2022 (c. 12), s. 31(4), Sch. 1 paras. 1, 2 (with s. 30, Sch. 1 para. 3)