This document discusses framework agreements under EU procurement law. It provides an overview of framework agreements, including their benefits for contracting authorities and suppliers. Framework agreements allow pre-establishing terms for future contracts over a period of up to 4 years. They can save time for contracting authorities and provide price and supply stability. The document outlines the EU and Bulgarian legal frameworks for framework agreements and discusses different models for single and multiple supplier agreements. It also provides a case study of Lithuania's centralized procurement agency using multiple framework agreements with reopening competition for items like IT equipment.