The increase in accidents with dangerous chemicals makes it incumbent upon community and regional planners to deal systematically with this problem. The first step invariably involves the assessment of the likelihood and type of incident which may impact a given area so that disasters may be averted or, at least, their effects mitigated. This paper presents one such assessment scheme, the Community Chemical Hazard Vulnerability Inventory (CCHVI). This instrument, aside from considering the type and volume of substances posing a threat to a designated area, considers the physical and human resources available, as well as the general state of readiness of the area (including such things as the interface of emergency-related organizations). The use of such vulnerability assessment instruments allows local emergency planners to identify particular dangers within their communities and permits regional planners to allocate funds for planning according to relative needs.