The Part-time Workers (Prevention of Less Favourable Treatment) Regulations 2000 (SI 2000/1551)is a UK labour law measure which requires that employers give people on part-time contracts comparable treatment to people on full-time contracts who do the same jobs. It implements the Part-time Work Directive 97/81/EC, and forms part of the European Union's programme to combat discrimination of atypical workers. Because the large majority of part-time workers are female, it is also an important attempt to combat sex discrimination.

• Council Directive 97/81/EC of 15 December 1997 concerning the Framework Agreement on part-time work concluded by UNICE, CEEP and the ETUC - Annex: Framework agreement on part-time work
  • Implemented under Part-time Workers (Prevention of Less Favourable Treatment) Regulations 2000, SI 2000/1551
• Council Directive 1999/70/EC of 28 June 1999 concerning the framework agreement on fixed-term work concluded by ETUC, UNICE and CEEP
  • Implemented under Fixed Term Employees (Prevention of Less Favourable Treatment) Regulations 2002, SI 2002/2034
• Directive 2008/104/EC of the European Parliament and of the Council of 19 November 2008 on temporary agency work
  • Implementation: by 5 December 2011.

• Employment discrimination law in the United Kingdom
• Agency Workers Directive
• UK agency worker law
• McMenemy v Capita Business Ltd [2007]CSIH 25