((a)) ** .—** The corporation shall have a designated agent in the District of Columbia to receive service of process for the corporation. Designation of the agent shall be filed in the office of the clerk of the United States District Court for the District of Columbia. Notice to or service on the agent, or mailed to the address of the agent, is notice to or service on the corporation.

((b)) ** .—** As a condition to the exercise in any State of any power or privilege granted by this chapter, the corporation shall file, with the secretary of state or other designated official of that State, the name and address of an agent in that State on whom legal process or demands against the corporation may be served.