In 1998 QuEST Forum developed the TL 9000 quality management system (QMS) to meet the supply chain quality requirements of the global communications industry. Built on ISO 9001 and the eight quality principles, TL 9000 is designed specifically for the communications industry.

The purpose of TL 9000 is to define the unique communications quality system requirements for design, development, production, delivery, and service. In addition, it specifies measurements for companies to help evaluate the effectiveness of quality implementation and improvement programs.

TL 9000: Our Value Proposition

TL 9000 Industry Report
An industry report on Edge Router Product Category trends over a five year period.


TL 9000 Handbooks
Measurements Handbook R4.5 and Requirements Handbook R5.0 are now available.


TL 9000 Jump Start Program
Succeed in implementing and certifying your TL 9000 registration with the assistance of a subject matter expert.