The Smoke and Carbon Monoxide Alarm (England) Regulations 2015 came into force on 1 October 2015. Private sector landlords are required to have at least one smoke alarm installed on every storey of their properties and a carbon monoxide alarm in any room containing a solid fuel burning appliance (e.g. a coal fire, wood burning stove). After that, the landlord must make sure the alarms are in working order at the start of each new tenancy, and it is the tenants responsibility during a tenancy to check the functionality at regular intervals. The requirements will be enforced by local authorities who can impose a fine of up to £5,000 where a landlord fails to comply with a remedial notice.