13 Confined Spaces operations have not been completed or if conditions arise that prevent entry; conditions outlined in the permit change; conditions not allowed under the Entry Permit occur in or near the permit space; or the work has been completed. Cancelled permits must be retained for a minimum of one year for program review purposes. Each department must establish procedures for the preparation, issuance, use and cancellation of Entry Permits. Departments should use the Confined Spaces Entry Plan, developed by EH&S. . Permit-Required Entry Procedures All personnel needing to enter a permit-required confined space must: • Obtain or prepare an Entry Permit. • Gather necessary tools and equipment to complete the required task. • Conduct pre-planning meeting. • Guard or barricade the entry opening. • Isolate the permit space. • Test the atmospheric conditions in the space at multiple levels, note results on the Verification and Monitoring Record on the back of the Confined Spaces Entry Plan . • Ventilate if indicated by monitoring. Ensure that a minimum seven air changes are achieved, then re-test atmospheric conditions. STOP the entry and notify your supervisor if hazardous atmospheres are not brought within acceptable conditions by ventilation. • Evaluate the space for engulfment, entrapment or any other serious safety or health hazards. If any of these hazards are found, attempt to control them using lockout/tagout or other suitable control measures. STOP the entry and notify your supervisor if the hazards can not be controlled. • Verify that acceptable conditions have been achieved on the Verification and Monitoring Record side of the Confined Spaces Entry Plan. • Begin the permit entry and perform necessary work. • Maintain contact between entrants and Attendant at all times during the entry to ensure safety. • Use continuous atmospheric testing and/or continuous ventilation with periodic atmospheric testing to guard against