These guide notes for training and operational staff set out Great Britain's Electricity Supply Industry Training Committee (ESITC) policy on craft on-the-job training (OJT). They are complementary to ESITC recommendations on Craft Training and of equal status to them. Section 1 is an introduction. Sections 2 through 5 outline the aims of on-the-job training, design of such training, implementation, and resources. Appendix A contains notes on development work (development of materials for OJT) with a checklist to aid identification of the possibility of formal versus on-the-job training. Appendix B lists responsibilities of staff for craft OJT. (YLB)