Approved Body Services for HS2 Overhead Catenary System Design and Certification

Colas Rail seeks an Approved Body to support UK Declaration of Conformity certification for Interoperability Constituents (ICs) related to Overhead Catenary System (OCS) design elements. The role includes obtaining initial certification for new OCS design components and re-certifying existing TSI-compliant system designs to NTSN standards. This work supports Colas Rail's OCS Design, Construction, Testing & Commissioning activities for the HS2 high-speed rail project. Services must be delivered in accordance with Colas Rail CR2 Professional Services Agreement Terms & Conditions, including HS2-specific provisions. Tender proposals should be submitted by Wednesday 17 June 2026 to tr.procurement@colasrail.com. Questions should be directed to the same email address.