The document outlines a certification scheme for plant inspectors with three levels (Level 1, Level 2, Level 3) and various endorsements. It describes:
1) The levels and endorsements available under the certification scheme, including requirements to progress from Level 1 to Level 2 to Level 3.
2) The scope of duties and responsibilities associated with each level, with higher levels able to perform more complex inspections and make technical judgements.
3) Requirements including training, experience, examinations and pre-qualification tests to achieve certification at each level.