15   T o have disciplinary rules in place and require National Federations to have disciplinary rules in place to prevent athlete Support Personnel who are using Prohibited Substances or Prohibited Methods without valid justification from providing support to athletes within the international Federation’s or National Federation’s authority.20.4  Roles and Responsibilities of National Olympic Committees and National Paralympic Committees 20.4.1  To ensure that their anti-doping policies and rules conform with the Code.