The purpose of the Committee for the Value Proposition in Laboratory Medicine (C-VPLM) is to demonstrate ways to identify the value of medical tests, particularly using measures that have a financial or economic dimension. This includes applying the concept of a value proposition to tests based on the unmet clinical need being met through use of the test in a defined clinical pathway. Delivering the value proposition of a test includes two separate processes called adoption and implementation. The webinar will highlight the differences between these two processes, including the different types of evidence that are required in adoption and implementation. The focus of the Committee’s work is on the latter because the importance of implementation is poorly appreciated and when performed badly contributes to the poor value of testing including variation in utilisation and the incorrect use of test results. The webinar will highlight a process of implementation that will address these problems including the identification of stakeholders in the clinical pathway, the measurement of the benefits and disbenefits to the different stakeholders and the measurements that are necessary to monitor the implementation process. All of these aspects will be illustrated through reference to specific tests with the aim that improved test implementation – namely the way tests are introduced by any laboratory or pathology provider – should be viewed as an exercise in quality improvement of the care pathway.