What Is a Gas Safety Certificate? Every landlord is legally obliged to conduct annual gas safety inspections and maintenance at their rental properties. This helps to keep their tenants safe from defective appliances that could pose a fire risk or a carbon monoxide poisoning danger. A gas safety certificate is a document that is given to a landlord following the engineer has conducted an inspection of both their installation and Mkgassafety the individual appliances in the property. It usually includes: It's a legal document Gas safety certificates are essential documents that prove that gas appliances and installations in a property have been inspected and certified to be safe. It is usually signed by the Gas Safe registered Engineer who carried out the inspection and contains specific information about the home and appliances as and the inspection results.