EFSA buys services and supplies through public procurement in line with EU legislation and the basic principles of transparency, equal treatment and non-discrimination, widest competition, proportionality and sound financial management. When tendering for EFSA procurement procedures, tenderers may bid alone as a single entity or in a joint offer with partners. All tenderers must have access to the EU market to be eligible for the award of EFSA contracts. Tenderers may also rely on the use of subcontractors in their offer. Subcontractors may be