Each employer must address actions that workers will take when there is an unwanted release of highly hazardous chemicals. Employers will need to decide: if they want workers to handle and stop small or minor incidental releases; whether they wish to mobilize the available resources at the plant and have them brought to bear on a more significant release; or whether they want their workers to evacuate the danger area and promptly escape to a preplanned safe zone area and allow the local community emergency response organizations to handle the release; or whether the employer wants to use some combination of these actions. Employers will need to select how many different emergency preparedness or lines of defense they plan to have, develop the necessary plans and procedures, properly train workers in their emergency duties and responsibilities, and effectively implement the selected plans and procedures (29 CFR 1910.119 Appendix C).