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Trainings and the training plan need to be maintained on a regular bases. It is a good practice to set up and review the training plan on a yearly basis. Based upon feedback from training activities trainings you can identify iof if there is any training module that needs to be updates or replaced, or if there are any subjects missing or new subjects have come up. There also might be new trainings available within the communities or commercial that can be a good or better alternative for existing training modules.