A hazard evaluation is defined as the identification of individual hazards of a system, determination of the mechanisms by which they could give rise to undesired events, and evaluation of the consequences of these events on health (including public health), environment, and property. These evaluations often use qualitative techniques to pinpoint weaknesses in the design and operation of facilities that could lead to incidents.22 Current requirements exist within the RMP rule to conduct these evaluations. RMP hazard evaluation regulations require, among other things, owners or operators with Program 2 processes to conduct hazard reviews under 40 CFR 68.50(a) that identify: