Answer:
90 days
Step-by-step explanation:
Form ADV is the “uniform form” which is used by "investment advisers". It is registered with SEC and also with state security authorities. It is the “primary disclosure document” that must be brought to advisory clients. One must update amendment to Form ADV every year, and must be filled by an investment adviser with SEC within "90 days" after the end of the fiscal year.
Once amendment submitted, one must update the responses to all items. It might also be filed promptly anytime during the year in case some changes need to be reflected.