FORS and CLOCS work together, to keep compliance simple. If you work in the construction industry and operate vehicles, FORS Silver accreditation will ensure you are CLOCS compliant.
The CLOCS Standard requires fleet operators to ensure all vehicle operations meet the requirements as described as Silver in the FORS Standard.
The CLOCS Standard requires fleet operators to provide acceptable evidence (as defined by each procurer) to demonstrate that requirements have been met.
However, it does not require FORS Silver accreditation.