Under Section 202(a)(11) of the Investment Advisers Act of 1940 and Section 401(f) of the Uniform Securities Act, an Investment Adviser (IA) is any person who, for compensation, engages in the business of advising others regarding securities. Exclusions protect commercial banks, bona fide general publications, and L.A.T.E. professionals whose advice is incidental and unbilled.
The National Securities Markets Improvement Act of 1996 (NSMIA) divided adviser oversight to eliminate dual state-federal regulation. Advisers with $110 million or more in Regulatory Assets Under Management (RAUM) must register with the SEC as Federal Covered Advisers. Advisers with less than $100 million register with state Administrators.
Firms between $100M and $110M may choose either state or federal registration. A $20 million buffer prevents rapid regulatory ping-pong: once SEC-registered, a firm is not forced to register with states unless its AUM falls below $90 million at its annual updating amendment.