The United Kingdom Accreditation Service is the sole national accreditation body recognised by government to assess, against internationally agreed standards, organisations that provide certification, testing, inspection and calibration services. Unlike many overseas countries the UK has only one recognised accreditation body.

Accreditation by UKAS demonstrates that WCS has the competence, impartiality and performance capability to provide certification services.

Currently WCS is accredited by UKAS for ISO 9001, ISO 14001, and OHSAS 18001 Certification Schemes.

WCS has certificate number 0060 and the accreditation can be validated by visiting the UKAS website.