RIA Glossary / Regulators & Filing Systems

State Securities Regulator (Division of Securities)

Quick Answer
A state securities regulator — often called a division of securities or department of financial regulation — is the state-level agency responsible for registering and overseeing investment advisers that fall below the SEC registration threshold, along with broker-dealers and certain securities offerings within that state.
Reviewed by Sam Carter, Director of Registration Services
Last reviewed October 2, 2026

What Is a State Securities Regulator?

Each state has its own securities regulator, and while many follow model rules developed through NASAA, specific registration requirements, examination practices, and fee schedules vary by state. State-registered advisers file and maintain their Form ADV through the same IARD system as SEC-registered firms, but their primary regulator — including who conducts exams and issues deficiency letters — is their home state’s securities division.

Advisers with clients in multiple states also interact with other states’ regulators through notice filings, even though their home state remains the primary registering authority.

Why it Matters

Because requirements genuinely differ from state to state, firms shouldn’t assume guidance written for one state’s process applies uniformly everywhere they do business.

Frequently Asked Questions

Which state regulator do I register with?

Generally the state where your firm has its principal place of business, though notice filing requirements may apply in other states where you have clients.

Do state regulators follow the same rules as the SEC?

Many state rules are modeled on NASAA guidance and mirror SEC concepts, but specific requirements, forms, and fee schedules vary by state.
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Related Terms

Regulation S-P

What Is Regulation S-P? Regulation S-P requires two main things: a privacy notice given to clients

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