Section 1.23 - Persons who may be admitted to practice(a) Any person who is a member in good standing of the bar of the Supreme Court of the United States or of the highest court of any state, territory or the District of Columbia, and who is not under any final order of any authority having power to suspend or disbar an attorney in the practice of law within any state, territory or the District of Columbia that suspends, enjoins, restrains, disbars, or otherwise restricts him or her in the practice of law, may represent others before the Commission.(b) When such member of the bar acting in a representative capacity appears in person or signs a paper in practice before the Commission, his personal appearance or signature shall constitute a representation to the Commission that, under the provisions of this chapter and the law, he is authorized and qualified to represent the particular party in whose behalf he acts. Further proof of authority to act in a representative capacity may be required.28 FR 12415, Nov. 22, 1963, as amended at 57 FR 38285, Aug. 24, 1992