This Practice Note covers by and upon which party a break notice must be served, the method of service (ie permissive or mandatory contractual provisions, statutory regimes for service of notices and deeming provisions under section 196 of the Law of Property Act 1925 (LPA 1925), section 23 of the Landlord and Tenant Act 1927 (LTA 1927), section 7 of the Interpretation Act 1978 (IA 1978), and common law rules). It also looks at the interaction between break notices and statutory security of tenure under the Housing Act 1988 and the Landlord and Tenant Act 1954 (LTA 1954). For more information in respect of when a break may be exercised, case law in respect of compliance with break notice requirements, in particular the reasonable recipient test under Mannai Investment v Eagle Star Life Assurance, and what happens when a mistake in a break notice is spotted, whether or not a break notice can be withdrawn or waived, and compliance with conditions precedent (pre-conditions), see Practice Note: Break clauses and notices—exercising breaks and conditions precedent. Who