Work Permits for Contractors are used for high risk jobs and unusual situations. They are required if there is a risk of serious injury which cannot be adequately controlled by normal physical safeguards. They also also need to specify the work to be done and precautions to be taken and provide a clear record that all foreseeable hazards have been considered.
The work permit is a multi-copy document that is displayed at the area of work indicating that hazardous work is in progress. The reverse of the document displays the hazard sign and it is kept in a waterproof plastic wallet held in place by cable ties.