If installed at a school, hospital or other building accessed by members of the general public, then yes, the handrail design is required by law to be compliant with the Disability Discrimination Act (DDA). Please note that standard key clamp handrails are not DDA compliant – that is a different type of handrail (a DDA handrail system).
Read more about DDA compliance here or send your drawings, sketches or photographs to sales@eziklampsystems.com for a price on a DDA compliant handrail system.