Accredited Investor Questionnaire (AIQ) is a set of questions used to determine whether an individual or organization is eligible to invest in certain types of securities. AIDS are required by the U.S. Securities and Exchange Commission (SEC) and are used to verify that investors meet certain financial qualifications and have the experience and knowledge necessary to understand the risks associated with investing in alternative investments. AIDS typically ask questions related to net worth, income, and investment experience and knowledge. There are two main types of AIDS: the Form D AIQ and the Form U-4 AIQ. The Form D AIQ is a questionnaire used when registering a security offering with the SEC. This AIQ is typically used by hedge funds, angel investors, and venture capitalists. The Form U-4 AIQ is a questionnaire used by brokers, broker-dealers, and investment advisers. This AIQ is used to verify that individuals meet the financial requirements to become registered representatives.