162. Training of persons after long absence or after an accident or change of job.-Wherever a person returns to employment in a mine, after an absence from work for a period exceeding one year or returns to work after being involved in a serious accident or in a dangerous occurrence which could have resulted in threat to life and safety or is re-employed on a job which is different from what such person had been performing earlier shall undergo training before employment as per the training scheme specified under these rules.