Section Env-Ws 901.17 - Operator Notification Requirement(a) Each operator who receives certification pursuant to these rules shall maintain a current mailing address and daytime telephone number on file with the committee.(b) All communications issued by or at the direction of the committee that are sent to the operator's last address of record shall be presumed to have been received by the operator.(c) An operator shall notify the committee in writing upon being designated as a back-up operator in responsible charge or being terminated from such a position.N.H. Admin. Code § Env-Ws 901.17