https://elearnportal.science/w....iki/10_Gas_Safety_Ce
How Long Does a Gas Safety Certificate Last? A gas safety certificate is a formal document that confirms the safety operation of the appliances in a home. It is issued by an Gas Safe registered engineer and lasts for a period of 12 months. Landlords must renew their certificates every year and provide an original copy of the certificate to any new tenants within 28 days from the start date. The inspection should be carried out by a licensed and experienced Gas Safe engineer.