Which Functional Safety Certificate(IEC- 61508/61511) is better suited for you

Which Functional Safety Certificate(IEC- 61508/61511) is better suited for you? There are multiple Functional Safety Certificates available in the Industry at present. Following are the some of the best functional safety certificates: 1. TUV SUD Functional Safety Engineer 2. TUV Rheinland Functional Safety Engineer 3. Exida CFSE/CFSP These certificates differs in cost, complexity level and acceptability