Holding both certifications is entirely possible. Thanks to the SSIP Deemed to Satisfy rule, passing one desktop audit allows a business to fast-track its application for the other badge at a significantly reduced administrative burden. Before looking at the differences, it is worth noting that both schemes belong to the Safety Schemes in Procurement (SSIP) umbrella framework. This mutual registration means that, at their core, both portals check the exact same health and safety fundamentals. Whether a business decides to opt for Safe Contractor or CHAS, the assessment process requires the submission of robust, verifiable evidence.