The U.S. Treasury market is the world's largest and deepest bond market. But it has long relied on bilateral clearing, which can create hidden risks when markets get stressed. New mandates from the SEC now push more trades into central clearing to make the system safer.

This shift matters to everyone. It changes how banks, hedge funds, and even your pension fund handle risk. Let's break down the facts with simple comparisons.

Table 1: Key Dates for the New Clearing Mandates
MilestoneTarget DateWhat Happens
Rule AdoptionDecember 2023SEC votes to finalize the rules.
Cash Clearing PhaseMarch 2025Mandatory clearing for eligible secondary market cash Treasury trades.
Repo Clearing PhaseJune 2026Mandatory clearing for eligible Treasury repo transactions.
Full ImplementationEnd of 2026Covered clearing agencies must be fully operational for all segments.

As you can see, the timeline is staggered. The SEC gave the market time to adapt. Cash trades come first, then the much larger repo market follows over a year later.

Key-Points
The Timeline Is Bite-Sized, Not a Shock

The SEC split the rule into two big phases. Cash Treasury trades must be cleared by March 2025, while repo trades have until June 2026. This prevents a sudden bottleneck in risk systems.

Who Has to Clear and Who Doesn't

Not every trade gets captured. Some exceptions exist to keep market plumbing working smoothly. The rules apply mostly to proprietary trading firms and leveraged funds.