Every group self-insurer shall be required to file with the chair evidence that it has obtained a Blanket Fidelity Bond providing coverage for theft, disappearance or destruction of money, securities, or other property, in an amount acceptable to the chair. Such bond shall provide coverage for dishonest acts of the group administrator, or a trustee, employee or agent of the group, whether identified or not, while acting alone or in collusion with others, and shall name the group self-insurer as loss payee. Such bond shall be maintained at all times during the existence of the group self-insurer.