Permits are to be prepared, reviewed, communicated and then accepted by all parties including the receiving authority who are competent and shall monitor the works.  Task specific TBTs or pretask briefing are to be conducted prior to commencement of works.  Hot work permit states that a fire watch is not required and confined space atmospheric monitoring was not being performed while hot works were being performed in deep trenches where Contractor's personnel were present.
Hazard category: Fire / explosion