Final answer:
AICPA members can face automatic expulsion for felony convictions or knowingly filing fraudulent tax returns for themselves or their clients, as these acts are against AICPA ethical standards.
Step-by-step explanation:
The American Institute of Certified Public Accountants (AICPA) has strict ethical standards and bylaws that its members are required to follow. According to these standards, certain actions can lead to automatic expulsion from the AICPA. Specifically, automatic expulsion may occur if a member is convicted of a felony, as this is considered a discreditable act that undermines the profession. Moreover, if a member knowingly files a fraudulent tax return for themselves or for a client, this also constitutes grounds for automatic expulsion. These actions are taken seriously as they not only undermine the integrity of the member but also the entire accounting profession.