Series 66
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ExploreAbout this exam
The Series 66 - formally the Uniform Combined State Law Examination - is a NASAA-administered qualification exam used by U.S. states to license professionals who work with individual clients on both the securities and investment advisory sides of the business. It is most commonly pursued by candidates who already hold, or are simultaneously pursuing, a general securities representative registration and who intend to act as an investment adviser representative, or to be associated with a firm that does. The content is organized into four broad areas: economic factors and business information; investment vehicle characteristics; client investment recommendations and strategies; and the laws, regulations, and guidelines that govern adviser conduct, including the prohibition on unethical business practices. Because the exam blends product knowledge with state-level compliance rules, successful candidates typically study the regulatory material and the analytical material side by side rather than in one block, and they practice applying rules to fact patterns rather than memorizing definitions. NASAA publishes an official content outline and study guide on its website; candidates should download the current version directly from NASAA before building a study plan, since outlines and test specifications are revised periodically. This page is independent study material and is not affiliated with, endorsed by, or sponsored by NASAA, FINRA, or any state securities regulator.
What you'll study
About Series 66 preparation
What exactly is the Series 66 exam?
It is the Uniform Combined State Law Examination, a state-law licensing exam administered through NASAA. It combines state securities ("blue sky") law content with investment adviser content, so a single exam can satisfy the law portion of both an agent registration and an investment adviser representative registration in most states.
Do I take the Series 66 instead of the Series 63 and Series 65?
Often, yes. The Series 66 is designed to cover the combined ground, so many candidates take it in place of sitting both the Series 63 and the Series 65. Whether that substitution is acceptable depends on your state and your registration type, so confirm the requirement with your state regulator or compliance department before scheduling.
How many questions are on it, and how long do I have?
Those specifics are set by NASAA and are not reproduced here, because item counts and time limits change when the exam is revised. Get them from the current NASAA Series 66 content outline and the scheduling confirmation you receive when you book your appointment. Plan your pacing practice around the numbers on your own admission ticket.
What score do I need to pass?
The passing standard is established by NASAA and is reported on your score report rather than published as a simple percentage you can target. Do not build a study plan around a guessed cutoff. Aim for consistent scores well above the practice threshold on full-length practice exams before you sit for the real thing.
How do I register, and what does it cost?
Registration is normally filed by your firm through the CRD or IARD system, usually as part of a Form U4 filing, and you then schedule at a test center. Fees and scheduling windows are set by NASAA and the test vendor and are subject to change, so verify the current amount on NASAA's site or with your firm.
What happens if I fail - can I retake it?
Retakes are generally permitted, but waiting periods and any limits on repeat attempts are governed by NASAA and state rules that change over time. Check the current policy on NASAA's exam FAQs before you rebook, and use the score report's section breakdown to target the weakest areas first.
How hard is the Series 66, and where do candidates slip up?
It rewards application over recall. The most common failure modes are memorizing rule numbers without being able to apply them to a scenario, skimming the investment adviser and unethical-practices material because it feels like "just compliance," and neglecting performance measurement and risk calculations. Candidates who only drill flashcards tend to plateau.
What study order do you recommend?
Start with investment vehicles and client recommendations so the products make sense, then layer the regulatory framework on top of them. Finish with ethics and prohibited practices, where the questions are the most scenario-driven. Take full-length timed practice exams in the final stretch and review every missed question, not just the score.
Does my exam result expire if I don't register in time?
Scores and the underlying qualification can be time-limited, and NASAA's site references an Exam Validity Extension Program (EVEP) with its own overview and FAQ pages. Whether an extension applies to your situation depends on your state and registration status, so read NASAA's EVEP materials directly rather than relying on secondhand summaries.
Is this site an official NASAA or state resource?
No. This is independent study material and is not affiliated with, endorsed by, or sponsored by NASAA, FINRA, or any state securities regulator. Always treat the current NASAA content outline, exam FAQs, and your state regulator's instructions as the authoritative source on format, fees, and eligibility.