The topics of tolerancing, alignment, and verification are crucial in the development of successful optical systems. The assembly of actual optical systems requires alignment of different system components. The precision level of the alignment depends on the assigned tolerance error budget, and so alignment and tolerances are interrelated. Verification involves validating optical system performance, including assurance of performance under a variety of operating conditions. This conference seeks to further the state-of-the-art in alignment and tolerancing, including verification of subsystems and at the system level, by providing a forum where these essential topics can be discussed. The conference also seeks to provide the audience with past and current insights in these topics. This eighth conference continues to build on the successful conferences held at SPIE Optics+Photonics from 2007-2013.