The Treasury Clearing Mandate Is 136 Days Away. Three Exemption Requests Are Still Open, and the Comment Windows Close Aug. 31.

by Tomas Ferreira · August 17, 2026

Markets Reporter, US Market Current

The clock on the biggest structural change to the U.S. Treasury market in a generation now reads 136 days. On Dec. 31, 2026, the Securities and Exchange Commission's central clearing requirement takes hold for eligible cash market transactions in Treasury securities; the parallel requirement for eligible repo transactions follows on June 30, 2027. Those dates come straight from the Commission's own extension order, Release No. 34-102487, File No. S7-23-22, issued Feb. 25, 2025, which states that the compliance date for Rule 17ad-22(e)(18)(iv)(A) and (B) "is extended from December 31, 2025, to December 31, 2026, for eligible cash market transactions, and from June 30, 2026, to June 30, 2027, for eligible repo transactions."

What is less widely appreciated is how much of the rule's perimeter is still being negotiated in public. A statement published on the SEC's website under the byline of Commissioner Mark T. Uyeda and dated Aug. 7, 2026 — titled "Update on the SEC's Work Toward Treasury Clearing Implementation [August 2026]" — describes three separate exemption matters on which the Commission is currently seeking comment. The statement gives the same expected closing date for all of them, though it does so twice rather than three times: once for the two exemption requests it is now considering together, where it says "The expected due date for comments is August 31, 2026," and once for the third and separate notice, where the wording is "The expected due date for comments on this notice is August 31, 2026." Either way the date is the same: Aug. 31, a Monday, 14 days from today and 122 days before the cash mandate takes effect.

It is worth being precise about what the rule does, because the obligation does not sit where most summaries put it. The requirement lives in Rule 17ad-22(e)(18)(iv)(A) and (B), which governs covered clearing agencies rather than trading firms directly. Footnote 1 of the Aug. 7 statement describes the rule as one that, "among other things, mandates the clearing of certain eligible secondary market transactions in U.S. Treasury securities by direct participants in covered clearing agencies," citing Exchange Act Release No. 99149 (Dec. 13, 2023). A note on sourcing: every characterisation of the rule in this article is taken from the Commission's own descriptions of it in these releases and statements, not from the operative regulatory text, which none of the documents cited here reproduces in full. On the Commission's description, the clearinghouse must write membership rules that require its direct participants to submit qualifying trades; the buy side is reached indirectly, through the dealers and clearing members it faces.

The Dec. 31 date is itself already a second date. The Commission adopted the clearing requirements in December 2023. The February 2025 order moved the cash compliance date from Dec. 31, 2025 to Dec. 31, 2026, and the repo date from June 30, 2026 to June 30, 2027 — a one-year slip in each case, announced alongside temporary relief in Press Release 2025-43.

The first two open matters concern who gets to stay outside the perimeter. The Aug. 7 statement says the Commission published two separate requests for comment earlier this year: one from the Institute of International Bankers "asking for relief from the application of the Treasury Clearing Rule to certain non-U.S. transactions," and one from the Securities Industry and Financial Markets Association "seeking targeted modifications to the inter-affiliate exclusion under the Treasury Clearing Rule, including relief from the 'outward-facing condition' for certain repo transactions between non-U.S. affiliates and non-U.S. parties below a certain threshold." The Commission is now, in its words, "evaluating potential paths forward on both Notices, including an approach that would address—in a single Commission order—the relief requested in the IIB Notice and the relief requested in the SIFMA Notice concerning the outward facing condition." That combined approach, note, is scoped to the outward-facing condition rather than to the whole of SIFMA's ask. Uyeda's earlier update, dated April 20, 2026, listed the IIB request as Exchange Act Release No. 34-105261 and the SIFMA inter-affiliate request as Exchange Act Release No. 34-105262, dated April 17, 2026.

The SIFMA notice is the cleanest illustration of how the calendar has stretched. Release No. 34-105262, File No. S7-2026-11, issued April 17, 2026, told commenters that "Comments should be received on or before May 29, 2026." That window has since been reopened — the Aug. 7 statement says flatly that "The Commission has determined to reopen the comment period for both Notices and has asked specific questions related to the details of such a combined approach" — and the new expected closing date is Aug. 31, 94 days later than the original deadline and just over four months after the request was first put out for public comment. The Commission's Treasury Clearing Implementation topic page carries the reopening as Release No. 34-106062; that release number comes from the topic page rather than from the document itself, and it does not appear on the Commission's Exchange Act exemptive notices and orders listing, whose most recent 2026 entry is dated July 24, 2026. The relief SIFMA is asking for is not cosmetic. The April notice describes it as a request that "would expand the list of permitted affiliates with whom direct participants of a U.S. Treasury securities CCA could transact and rely upon the Inter-Affiliate Exclusion beyond the current set (i.e., banks, broker-dealers, futures commission merchants, and their foreign equivalents) to include any entity that is not an investment company (as defined in section 3 of the Investment Company Act of 1940 ...), regardless of whether such investment company is registered or required to be registered under that act." That wording is the Commission's characterisation of SIFMA's request, not a quotation from SIFMA's letter.

The third open matter is narrower but goes to the economics of clearing for intermediaries. It concerns Rule 15c3-3, the broker-dealer customer protection rule. In the Aug. 7 statement's own words, "This relief would permit broker-dealers to include a debit in their reserve computations for margin on deposit with a qualified clearing agency for cleared U.S. Treasury transactions, even if the margin collateral was delivered on a net, omnibus basis." That is a question about how margin already posted is treated in the reserve formula, not about how margin is calculated. The notice carries release number 34-105980 on the Commission's Treasury Clearing Implementation topic page; the Commission's exemptive notices and orders listing shows the same release number dated July 24, 2026, as a notice of an application by SIFMA. Its comment deadline is the same Aug. 31 date.

Against those open items sits a genuinely substantial list of finished work, and it would be wrong to read the open comment periods as evidence that nothing has been built. Per the Aug. 7 statement, the Commission published an order granting conditional exemptive relief from the scope of the rule for transactions cleared through "captive" clearing subsidiaries on behalf of private funds, subject to conditions. Commission staff also issued an FAQ on clearing agency outages, which the statement says "provided staff's view that bilateral trading will remain an available option in certain instances when a clearing agency is not available to accept transactions in U.S. Treasury securities from its participants" — a staff view, hedged to certain instances, rather than a general carve-out. On April 15, 2026, the SEC approved an exemptive order and a related FICC rule change permitting customer cross-margining of Treasury cash positions cleared by a registered clearing agency against Treasury futures positions cleared by a registered derivatives clearing organization, announced in Press Release 2026-36 under release numbers 34-105248 and 34-105249. In December 2025 the Commission also approved FICC's collateral-in-lieu offering and its ACS triparty service.

The competitive map has changed too. When the rule was adopted, the Fixed Income Clearing Corporation was effectively the only game in town for cleared Treasuries. It is not anymore. The Commission granted CME Securities Clearing, Inc. registration as a clearing agency in Exchange Act Release No. 34-104281, dated Dec. 1, 2025, and granted ICE Clear Credit LLC registration in Release No. 34-104762, File No. 600-45, dated Jan. 30, 2026 — an "Order Granting an Application for Registration as a Clearing Agency under Section 17A of the Securities Exchange Act of 1934" covering, among other things, what ICE Clear Credit calls its Treasury Business.

Registration, however, is not a launch. The ICE Clear Credit order does not set a start date for operations; it says only that ICC will publish its fee schedule when the Treasury Business is launched, and that "any fees, dues or other charges that ICC intends to assess must be filed as a proposed rule change pursuant to Section 19(b) of the Exchange Act and Rule 19b-4 thereunder." The order also defines a "Treasury Governance Commencement Date" — the point at which a Treasury Risk Committee gains the right to designate two members for election to the board, one of them independent — as arriving only after the first two consecutive calendar quarters following June 30, 2026 in which Treasury Business transaction-based revenue is at least 20% of ICC's aggregate quarterly revenue and its Treasury clearing market share, averaged across those two quarters, is 10% or more. Those are governance triggers set well above zero, which is to say the order contemplates a ramp rather than an immediate presence at scale. Anyone assuming three functioning venues on day one is reading more into the registrations than the orders say.

The scale involved explains the care. DTCC's public Treasury clearing page shows "$12 Trillion - Average Daily GSD Activity Transactions Cleared by FICC" and "$2.4 Trillion - Average Daily Volume of Sponsored Service," along with "2,850+" sponsored members, "65" jurisdictions approved by FICC for sponsored members, and a "28%" year-over-year increase in sponsored service clearing volume. Those figures are DTCC's own and the page carries no publication or "as of" date, only a 2026 copyright line, so treat them as undated company disclosure on a marketing page rather than a dated official statistic. They nonetheless bracket the order of magnitude: the mandate is being layered onto a plumbing system already moving trillions a day.

One thing the August statement conspicuously does not do is signal another delay. It refers to "the current deadline" and closes by telling the market to keep preparing: "Industry participants should continue their efforts to prepare for a smooth and successful transition to increased clearing of U.S. Treasury securities by the current deadline." The statement points to SIFMA's recent announcement of standardized documentation for done-away transactions as one such effort, noting it "may help improve the onboarding process for an intermediary's new customers." We found no announcement of a further extension, exemption or compliance-date change after Aug. 7, 2026. To be explicit about the scope of that check, we reviewed, as of the morning of Monday, Aug. 17, 2026: the SEC's Treasury Clearing Implementation topic page, which shows a last-reviewed date of Aug. 10, 2026 and still states the Dec. 31, 2026 and June 30, 2027 dates; the Aug. 7, 2026 and April 20, 2026 Uyeda statements; the Commission's Exchange Act exemptive notices and orders listing, whose most recent 2026 entry is dated July 24, 2026; and the S7-23-22 rulemaking record, whose latest compliance-date action remains the February 2025 extension. That is a search of the Commission's own pages, not of every channel through which relief could arrive. A further extension could be announced at any time; as of this writing, none has been.

So the honest summary of where things stand is neither the panic version nor the complacent one. The clearinghouse infrastructure, the cross-margining framework and the alternative venues are largely in place or approved. What is not settled, 136 days out, is the boundary of the rule — which foreign transactions fall outside it, which affiliate trades are excluded, and how the reserve computations of the broker-dealers in the middle treat the margin they have posted. Those three questions are being decided on a comment record that is not expected to close until Aug. 31.

For anyone tracking this, the checkable next markers are the close of those comment periods on Aug. 31 and whatever the Commission does with them afterward. The two exemption-request notices have both had their comment periods reopened, and the IIB matter's April notice was itself styled a reopening — Release No. 34-105261 is titled "Reopening of Comment Period; Notice of Request for Exemptive Relief," following an earlier notice of the request, Release No. 34-104944, dated March 6, 2026. Whether these windows move again is the single clearest tell available on how comfortable the Commission is with the Dec. 31 date.