An Acceptable Behaviour Agreement (ABA) is a legally binding agreement between a tenant and a housing provider in the UK. It is designed to help ensure that tenants understand and comply with their tenancy agreement and the legal obligations of their tenancy. An ABA outlines the expectations for acceptable behaviour in a specific housing setting, such as a block of flats or neighbourhood. It sets out the rights and responsibilities of the tenant and housing provider, including the consequences of any breaches of the agreement. The scope of the ABA will depend on the specific situation, but typically includes behaviour that affects the comfort, safety, and well-being of other tenants and residents, as well as the physical environment. The purpose of an ABA is to create a safe, secure and harmonious living environment, and to prevent anti-social behaviour and crime.