The main provisions concerning mergers and acquisitions are set out in Part 3 and Part 3A of the Competition Act 2002, as amended.
The unamended text of the Competition Act 2002 is available here. It should be noted that Part 3 of the Competition Act 2002 has been extensively amended by the Competition and Consumer Protection Act 2014 (which also inserted a new Part 3A into the Competition Act 2002).
Other legislation which contains provisions relating to mergers and acquisitions includes:
Section 54 of the Credit Institutions (Stabilisation) Act 2010
Section 96 of the Central Bank and Credit Institutions (Resolution) Act 2011
Mergers-related secondary legislation
The following relevant statutory instruments have been made under the Competition Act 2002: