The Construction Skills Register (CSR) is a register of construction workers who have completed the industry approved CSR health and safety training course and assessment. The aims of the CSR registration scheme are to: Raise standards of health and safety Provide recognition of skills, experience and qualifications attained Reduce risks and accidents in the industry This is carried out by ensuring that all construction workers undertake health and safety training every 4 years. To become registered, workers must complete a minimum of one day health and safety training, delivered by an accredited training provider. Operatives can also be assessed to ascertain their level of competency in their skill area. Applicants receive a photographic identity card that provides proof of their health and safety training and their skills and qualifications, if appropriate.