FINRA Rule 9133

FINRA Rule 9133(a): Service Responsibility

FINRA Rule 9133(a) establishes a clear and symmetrical service responsibility rule: other than a complaint, order, notice, or decision, any paper — including expressly an answer and a motion — shall be served on each party by the party on whose behalf the paper was prepared, or by that party's counsel or representative. This party-directed service structure contrasts directly with FINRA Rule 9131's Department of Enforcement-directed complaint service and FINRA Rule 9132's Adjudicator-directed order and decision service. For all inter-party documents, each party is responsible for serving every other party — the service obligation runs from the filing party outward to all other parties simultaneously.

The explicit inclusion of answers and motions in FINRA Rule 9133(a)'s scope reflects the most common documents parties serve on each other in disciplinary proceedings. An answer to a complaint — the respondent's formal response to FINRA's charges under FINRA Rule 9215 — is served by the respondent on all other parties pursuant to FINRA Rule 9133. A motion — whether a motion to dismiss, a motion for summary disposition, a motion in limine, or any other procedural motion under FINRA Rule 9146 — is served by the moving party on all other parties pursuant to FINRA Rule 9133. The same rule covers the opposition to that motion, the reply brief, proposed findings, exhibit lists, and every other document that flows between the parties during the proceeding.

FINRA Rule 9133(b): How Inter-Party Papers Are Served — The OHO Portal and Email Distinction

FINRA Rule 9133(b) — as most recently amended by SR-FINRA-2022-009 effective August 22, 2022 — establishes the critical distinction in service methods between OHO proceedings and all other Code proceedings.

For documents required to be served in proceedings before the Office of Hearing Officers pursuant to the Rule 9000 series, parties shall serve documents pursuant to FINRA Rule 9134(c) — the OHO Portal service provision. Service through the OHO Portal is deemed complete upon submitting the document to the Portal. This standard mirrors the OHO Portal completion standard for Adjudicator-issued documents under FINRA Rule 9132(b) — in both cases, Portal submission equals complete service regardless of when any party actually accesses or reviews the submitted document.

The OHO Portal service obligation for inter-party documents in OHO proceedings reflects the integrated case management philosophy of the Portal system. When both the Adjudicator and the parties use the Portal as the primary document exchange mechanism, every paper in the proceeding is accessible to all Portal participants in real time — creating a shared electronic case record that all parties can review and respond to efficiently. The Department of Enforcement submits its motion papers to the Portal; they are immediately available to the respondent and the Hearing Officer. The respondent submits its opposition through the Portal; it is immediately available to Enforcement and the Hearing Officer. The completeness and currency of the shared case record is guaranteed by the Portal's architecture in a way that serial mail service cannot match.

For all other documents required to be served pursuant to the Rule 9000 series — meaning inter-party documents in proceedings before the NAC, Review Subcommittee, Extended Proceeding Committee, Statutory Disqualification Committee, FINRA Board, and all other adjudicative bodies outside OHO — parties shall serve documents by electronic mail unless an alternative method of service is ordered by the Adjudicator. Service by electronic mail is deemed complete upon sending of the documents. The unless an alternative method is ordered qualifier preserves Adjudicator flexibility to direct different service methods when circumstances require — for example, when a party lacks reliable email access or when the nature of a particular document requires verified receipt.

The shift to mandatory email as the default for non-OHO inter-party service — made permanent by SR-FINRA-2022-009 after being temporarily adopted in May 2020 during the COVID-19 pandemic — represents the most significant operational change to FINRA Rule 9133 in the rule's history. Prior to the 2020 temporary amendments, FINRA Rule 9133(b) directed parties to serve documents pursuant to FINRA Rule 9134 — personal service, mail, or courier only. The recognition that two years of operating under electronic service requirements during the pandemic demonstrated the efficiency and reliability of electronic methods led FINRA to permanently codify email as the mandatory default for non-OHO proceedings rather than returning to the paper-based system.

The Certificate of Service Requirement

FINRA Rule 9133(b) also establishes the certificate of service obligation that accompanies every inter-party document served under the rule: the paper served on a party, along with the certificate of service executed in connection with that service, shall be filed with FINRA pursuant to FINRA Rule 9135. This filing obligation is simultaneous with service — the certificate documenting service must be filed at the same time the served document is filed with the Adjudicator.

A certificate of service is the written attestation that service was accomplished — identifying the document served, the method of service used, the date and time service was completed, the parties or counsel served, and the addresses or email addresses to which the document was sent. For OHO Portal service, the certificate documents the date and time of Portal submission. For email service, the certificate documents the date and time the email was sent and the email addresses to which it was addressed.

The certificate of service serves two essential functions in the disciplinary proceeding record. First, it creates the evidentiary basis for computing all response deadlines — the twenty-five day period for filing an answer under FINRA Rule 9215 runs from service of the complaint, and every subsequent response deadline runs from the date of service of the triggering document. Without a reliable certificate of service establishing the service date, deadline computation becomes uncertain. Second, it creates the record that supports any assertion by the filing party that a document was timely served — in the event of a dispute about whether service occurred or when it was completed, the certificate of service is the primary evidence.

FINRA Rule 9133(c): The Counsel Service Rule

FINRA Rule 9133(c) establishes the counsel service principle for inter-party documents: whenever service is required to be made upon a person represented by counsel or a representative who has filed a notice of appearance pursuant to FINRA Rule 9141, service shall be made upon counsel or the representative rather than directly on the person. The Adjudicator retains discretion to order that service also be made directly on the person in addition to counsel, but absent such an order, service on counsel alone is complete and sufficient.

The counsel service rule under FINRA Rule 9133(c) operates as both a simplification and a protection. As a simplification, it means that a party serving a motion or brief on a represented respondent need only serve counsel — not locate and serve the respondent directly. As a protection, it ensures that represented parties receive all documents through their counsel who can assess their significance, advise on response strategies, and ensure deadlines are met — rather than having documents arrive directly to parties who may lack the expertise to recognize their significance or the deadlines they trigger.

The alignment between the FINRA Rule 9133(c) counsel service rule and the FINRA Rule 9131(a) counsel acceptance of service provision for complaints creates a coherent represented party framework across all three service rules. Once a respondent has retained counsel and that counsel has filed a notice of appearance under FINRA Rule 9141, the complaint can be served on counsel by agreement under FINRA Rule 9131(a), all Adjudicator-issued documents are served on counsel under FINRA Rule 9132, and all inter-party documents are served on counsel under FINRA Rule 9133(c). The represented party need never be contacted directly by FINRA or the Department of Enforcement — all communications flow through counsel.

FINRA Rule 9133 in the Context of Specific Proceeding Stages

The practical operation of FINRA Rule 9133 across the stages of a disciplinary proceeding illustrates its pervasive role in the Code's mechanics.

At the answer stage, the respondent serves its answer on all parties — the Department of Enforcement and any co-respondents — through the OHO Portal if the proceeding is before OHO, or by email if it is in a non-OHO context, with simultaneous filing with OHO. At the pre-hearing stage, the parties exchange exhibit lists, witness lists, pre-hearing briefs, and motions in limine through the same FINRA Rule 9133 mechanisms. During the hearing itself, service issues may arise with respect to documents presented as exhibits or introduced into the record — FINRA Rule 9133's framework governs the service of any documentary exhibits shared with other parties outside the hearing session. At the post-hearing stage, proposed findings of fact and conclusions of law, answering briefs, and reply briefs are all served pursuant to FINRA Rule 9133. At the appellate stage before the NAC, opening briefs, answering briefs, reply briefs, and any supplemental submissions are served by email as the default method for non-OHO proceedings.

Connection to FINRA Rules 9131, 9132, and 9134

FINRA Rule 9133 completes the three-rule document typology established by the 9130 subsection alongside FINRA Rule 9131 and FINRA Rule 9132. The three rules together cover every document in every Code proceeding without gap or overlap. The complaint and initiating documents — the highest-stakes documents requiring the most reliable service — are served by FINRA enforcement personnel using personal service or mail under FINRA Rule 9131. Adjudicator-issued orders, notices, and decisions — the official rulings of the proceeding — are served by OHO or other adjudicative bodies through Portal or email under FINRA Rule 9132. All remaining inter-party papers — the full range of submissions that parties exchange throughout the proceeding — are served by the filing party through Portal or email under FINRA Rule 9133. FINRA Rule 9134 defines the mechanics of each service method that all three rules invoke.

Examination Relevance and Key Takeaways

FINRA Rule 9133 is tested on the Series 24 General Securities Principal examination in the context of the Code of Procedure's service framework, the procedural mechanics of FINRA disciplinary proceedings, and the practical obligations parties face when exchanging documents throughout a proceeding. The August 2022 modernization making email the mandatory default for non-OHO inter-party service and OHO Portal service mandatory for OHO proceedings is current and examination-relevant material.

The key points to retain are these: FINRA Rule 9133 governs the service of all papers other than complaints, orders, notices, and decisions — the full range of inter-party documents including answers, motions, briefs, exhibit lists, witness lists, proposed findings, and all other documents parties exchange throughout Code proceedings; service responsibility rests with the party on whose behalf the paper was prepared or their counsel or representative; for OHO proceedings, inter-party documents must be served through the OHO Portal pursuant to FINRA Rule 9134(c) — service complete upon Portal submission; for all other Code proceedings, inter-party documents must be served by electronic mail as the mandatory default unless the Adjudicator orders an alternative method — service complete upon sending; both service methods were made mandatory by SR-FINRA-2022-009 effective August 22, 2022, announced in Regulatory Notice 22-16, permanently codifying electronic service requirements first adopted temporarily during the COVID-19 pandemic in May 2020; every served document must be accompanied by a certificate of service filed simultaneously with the Adjudicator pursuant to FINRA Rule 9135 identifying the method, date, time, and recipient of service; when a party is represented by counsel who has filed a notice of appearance under FINRA Rule 9141, service must be made on counsel rather than directly on the party — the Adjudicator may additionally order direct service on the party; FINRA Rule 9133 covers all proceeding stages from answer through appeal and applies across all Code proceeding types by operation of FINRA Rule 9110(a)'s universal applicability principle; and the rule was last amended by SR-FINRA-2022-009 effective August 22, 2022 with the prior amendment being SR-FINRA-2018-027 effective August 3, 2018.