NTS defines Site Assessment as the performance of Phase I and Phase II site Assessments, to a point where a release is identified, or the understanding of the environmental conditions of the property is sufficient and no release has been identified. Once a release has been identified, the work becomes Site Investigation and the objectives of the client include satisfying regulatory requirements associated with the release. From a process point of view, Assessment work focuses on protection from liability, exposure or an understanding of the effect attached liability may have on the asset value of the property. Defensibility of the work rests on proving appropriate inquiry sufficient for due diligence liability protections. In most cases assessment work is performed in support of property transfer and/or property redevelopment.