Putting It Together: Which Rule Applies?

Putting It Together: Which Rule Applies?

Quick Answer

Matching fact patterns to the governing standard starts with two questions: Was a recommendation made, and who is the customer? Retail customers trigger Reg BI plus Form CRS. Qualifying institutional customers get the suitability rule with customer-specific waived. Other non-retail customers get the full suitability rule. Municipal products add the MSRB municipal-suitability rule, analysis tools add the investment-analysis-tool rule, and the know-your-customer rule always applies.

The preceding sections introduced the FINRA suitability rule, Reg BI, Form CRS, the investment-analysis-tool rule, and the MSRB municipal-suitability rule as separate rules. On the Series 6 exam, the real work is matching the fact pattern to the governing standard. This section is the decision map.


Is there a recommendation triggering Reg BI or the suitability rule?

Before any suitability standard attaches, ask: was a recommendation made?

  • No recommendation (customer-directed, unsolicited trade only): no suitability obligation under the suitability rule or Reg BI. The know-your-customer (KYC) rule still applies.
  • Yes, a recommendation (buy, sell, hold, or strategy): the suitability rule or Reg BI applies, depending on who the customer is.

Exam Tip: Gotchas

  • The trigger for Reg BI and the suitability rule is a RECOMMENDATION, not just account opening or a customer conversation. A customer who walks in, asks for a specific fund by name, and places an order with no advice has not triggered Reg BI or the suitability rule, but the KYC rule still applies, and a later hold recommendation would restart the analysis under the suitability rule's hold-recommendation supplementary material.

Who is the customer for suitability purposes?

Retail Customer

  • A natural person (or a non-professional legal representative of one)
  • Uses the recommendation primarily for personal, family, or household purposes

-> Reg BI applies. Reg BI absorbs and exceeds the suitability rule. Form CRS must be delivered per the CRS triggers.

Institutional Customer Meeting the Exemption

  • Meets the institutional-customer definition (listed entity OR $50M+ in assets)
  • Firm has a reasonable basis to believe the customer evaluates risk independently
  • Customer affirmatively indicates independent judgment

-> The FINRA suitability rule applies, with customer-specific waived. Reasonable-basis always applies.

Non-Retail Customer NOT Meeting the Exemption

  • Entity or account that is not a Reg BI retail customer AND does not qualify for the institutional exemption

-> The FINRA suitability rule applies in full (reasonable-basis + customer-specific + quantitative, where control exists).


Which suitability rule applies to each recommendation scenario?

ScenarioGoverning Standards
BD recommendation to a retail customer (natural person, personal/family/household use)Reg BI absorbs FINRA suitability. Form CRS delivery at or before the recommendation.
BD recommendation to an institutional customer that qualifies and affirms under the institutional-customer exemptionThe FINRA suitability rule: reasonable-basis still applies; customer-specific waived by the institutional exemption.
BD recommendation to a non-retail, non-qualifying institutionThe FINRA suitability rule: full three-layer suitability.
BD recommendation of a municipal security or municipal fund security (529, LGIP, ABLE) to a retail customerReg BI + the MSRB municipal-suitability rule (satisfied by Reg BI compliance). Form CRS delivery.
BD recommendation of a municipal security to a non-retail customerThe MSRB municipal-suitability rule: three-layer suitability.
Use of an investment analysis tool with required disclosures, filings, and accessThe investment-analysis-tool rule (standalone): applies alongside whichever suitability standard governs the resulting recommendations.
No recommendation (customer-directed trade only)No Reg BI or suitability-rule duty; the KYC rule still applies.

Think of it this way: The rules stack rather than replace. A retail customer buying a 529 plan with the help of a Monte Carlo tool is governed by Reg BI (conduct), Form CRS (disclosure), the MSRB municipal-suitability rule (muni parallel, satisfied by Reg BI), and the investment-analysis-tool rule (tool disclosures). Each rule answers a different question; all must be satisfied.


Which rules apply to a retail customer 529 plan recommendation?

Fact pattern: a registered rep recommends a 529 college savings plan share class to an individual customer funding a grandchild's education.

  • Recommendation made? Yes.
  • Retail customer? Yes, a natural person using the account for a family member's education (household/family purposes).
  • Rules that attach:
    • Reg BI: Disclosure, Care, Conflict of Interest, Compliance Obligations
    • Form CRS: deliver at or before the recommendation (new retail investor or existing retail customer trigger, depending on the prior relationship)
    • The MSRB municipal-suitability rule: muni parallel, satisfied by Reg BI compliance for this retail customer
    • The FINRA suitability rule: absorbed by Reg BI Care Obligation
    • The KYC rule: ongoing, always

Note the pattern: retail + muni recommendation activates Reg BI + CRS + the MSRB municipal-suitability rule in one stack. Compliance with Reg BI is the spine.


Which rules apply to a non-qualifying trust recommendation?

Fact pattern: a small institutional trust with $3 million in assets (not at the $50M threshold) is recommended a mutual fund.

  • Recommendation made? Yes.
  • Retail customer under Reg BI? The trust is not a natural person, so no.
  • Institutional exemption? Not met: the trust has only $3M in assets, well under the $50M threshold.
  • Rules that attach:
    • The FINRA suitability rule: full three-layer suitability (reasonable-basis, customer-specific, quantitative where control exists)
    • The KYC rule: ongoing, always
  • Reg BI and Form CRS do NOT apply because the customer is not retail
  • The MSRB municipal-suitability rule does NOT apply because the recommendation is for a mutual fund, not a municipal security

Exam Tip: Gotchas

  • $50M threshold matters for the institutional exemption. A $3M trust does not qualify, so customer-specific suitability is NOT waived. The rep must still perform the full three-layer suitability analysis, including customer-specific review of the trust's profile.

Which rules apply to a hold recommendation on an unsolicited purchase?

Fact pattern: the customer bought a fund two years ago with no rep input. Today the customer asks "Should I stay in?" and the rep says "Yes."

  • Recommendation made? Yes: the rep's "Yes, stay in" is a hold recommendation under the suitability rule's hold-recommendation supplementary material.
  • Retail customer? Assume yes, a natural person.
  • Rules that attach:
    • Reg BI Care Obligation, evaluated under the customer's current profile, not the profile at the time of the original purchase
    • The FINRA suitability rule: absorbed by Reg BI for retail; three-layer analysis applied to the hold decision
    • The KYC rule: ongoing

The trap: the rep did not originate the position, but the rep did recommend holding it. The original unsolicited purchase does not inoculate the later hold advice.

Exam Tip: Gotchas

  • The hold recommendation starts a fresh Reg BI or suitability analysis. The rep who says "yes, stay in" two years after an unsolicited purchase is now the source of a recommendation. The customer's current profile controls, and failure to verify the current profile is the recurring enforcement theme in hold cases.

What are the key decision-map takeaways for suitability rules?

Exam Tip: Gotchas

  • Start by asking whether a recommendation was made. No recommendation -> no suitability duty (but the KYC rule still applies).
  • Retail customer -> Reg BI; institutional -> the FINRA suitability rule (with possible institutional-exemption waiver).
  • Muni products (529, LGIP, ABLE) activate the MSRB municipal-suitability rule; Reg BI compliance satisfies it for retail customers.
  • Investment analysis tools attach the investment-analysis-tool rule separately from whichever suitability rule governs the downstream recommendation.
  • Hold recommendations count, and the rep evaluates them under the current profile.
  • Form CRS delivery sits alongside Reg BI and triggers on rollovers and new-service recommendations even without a new account.