Yes, any change of occupation shall be notified in 30 working days. Since occupation changes may result in new premium(s) amount, and will be applied from the next premium due date/renewal date or even policy termination. There are 2 conditions:1. When the new occupation is insurable After the receipt of the occupation change notification, premium will be adjusted based on the new occupation class from the next premium due date. 2. When the new occupation is not insurable After the receipt of the occupation change notification, your policy will be terminated. Premium paid for the period between the last monthiversary and the end of the current Policy Year will be refunded. During claims assessment, if Blue discovers you have not notified Blue for change of occupation to a class which is not insurable and your claims arise from injury directly or indirectly related to such occupation, Blue will not be liable for the claims. Blue reserves the right to terminate the policy and refund premium paid for the period between the last monthiversary of the date of the accident and the end of the current Policy Year.