1.1 ,This guide describes a stepwise procedure for using existing information, and if available, supporting field and laboratory data concerning a process, materials, or products potentially linked to adverse effects likely to occur in the environment as a result of an event associated with a process such as the dispersal of a potentially invasive species or the release of material (for example, a chemical) or its derivative products to the environment. Hazard Analysis-Critical Control Point (HACCP) evaluations were historically linked to food safety (Hulebak and Schlosser W. 2002 (1),2 Mortimer and Wallace 2013 (2)), but the process has increasingly found application in planning processes such as those occurring in health sciences , Quattrin et al. 2008 (3), Hjarno et al. 2007 (4), Griffith 2006 (5) or, Noordhuizen and Welpelo 1996 (6)), in natural resource management (US Forest Service 2014 a,b,c (7, 8, 9), (US EPA, 2006 (10), see also