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Gas Safety Check For Landlords and Owners of BB s. Landlords and owners of BB's are lawfully required to have their gas appliances, pipe work and flues checked annually. The check should be performed by an engineer signed up with Gas Safe. Occupants are not accountable for organizing their own gas safety checks, but they are still accountable for any home appliances and flues that connect to the landlord's property. The landlord should supply a copy of the record to existing renters