Globalization of the telecommunications industry is driving the need to apply a common set of quality requirements throughout the supply chain. TL 9000 addresses this need and is synonymous with reduced costs, improved performance and enhanced customer/ supplier relationships.

TL 9000 was designed specifically for the telecommunications industry. It is based around ISO 9001 and was developed by the Quality Excellence for Suppliers of Telecommunications (QuEST) Leadership Forum in response to product and service failures within the industry. 

Representatives from major stakeholders decided that only by defining specific quality needs and setting clear goals and objectives could the telecommunications industry promote a culture for continual improvement.

TL 9000 defines the telecommunications quality system requirements for the design, development, production, delivery, installation and maintenance of products and services. This also includes performance and cost-based measurements that measure reliability and quality performance.

TL 9000 is only relevant to those organizations currently engaged in work within the telecommunications industry and who want to implement a certified management system with international recognition.