B Grade Tunnel Manager certificates are valid for five years and issued by the New Zealand Mining Board of Examiners (BoE).   As a B Grade Tunnel Manager, you are expected to interpret and implement operational plans in compliance with legislation and workplace policies and procedures while having a broad operational and theoretical knowledge.  Hold knowledge of health and safety legislation, coordinate and apply risk assessment procedures with workplace health and safety procedures. Have the ability to implement processes and procedures for emergencies and provide face-to-face leadership and guidance when organising activities holding some responsibility for the performance and safety of your team.