The use of Third Party Certificated providers is strongly recommended by Government in guidance documents Independent Certification Body sends trained assessors out to assess the provider. They confirm the provider is working to the latest appropriate standards and best practice for the specific service they deliver. They check and verify these required competencies and management systems to ensure that the provider can do what they say - and are checked annually. Third-party quality assurance can offer comfort both as a means of satisfying you that goods and services you have purchased are fit for purpose, and as a means of demonstrating that you have complied with the law.