Legionella Risk Assessment Required By: Health and Safety at Work Act 1974, and The Control of Substances Hazardous to Health (COSHH) Regulations 2002 While not a certificate in the traditional sense, landlords are required to carry out a Legionella risk assessment to identify and manage the risk of Legionnaires’ disease. This assessment involves checking the property's water syst... https://firstlandlordcertificateslondon.co.uk/