This Practice Note considers the extent to which it is possible to contract out of the application of the Transfer of Undertakings (Protection of Employment) Regulations 2006, SI 2006/246 (TUPE 2006). It examines the ability to settle claims under TUPE 2006 by settlement agreement (formerly known as a compromise agreement) and tripartite settlement agreements. It also explains the general rule that claims where the remedy arises under TUPE 2006 cannot be settled, but claims where the remedy arises under other legislation, eg Employment Rights Act 1996 (ERA 1996) may be settled. Finally, it considers Advisory, Conciliation and Arbitration Service (Acas) conciliation of certain TUPE 2006 claims and the application of the early conciliation requirement to those claims. EU-derived laws, such as much of TUPE 2006, that have been made to implement UK obligations under EU law (such as the obligation to implement Directive 2001/23/EC, the Acquired Rights Directive (ARD)), applicable in the UK at the end of the Brexit transition period/IP completion day are preserved in the UK’s domestic legal framework as assimilated law. For