The January 2026 USMLE service transition got most of its attention for what it did to international graduates. There was a second half, and for anyone planning the full sequence it is the one more likely to catch you out.
What changed
On 26 January 2026, the Step 3 services that FSMB had provided to students and graduates of US medical schools moved to NBME.
US graduates already registered for Step 1 and Step 2 CK through NBME. Step 3 was the exception, handled elsewhere. That exception is gone: all three now sit with NBME.
Why this one gets missed
Because of when it arrives.
You learn how USMLE registration works once, at Step 1, somewhere in your preclinical years. You use that knowledge again for Step 2 CK a year or two later. Then Step 3 comes during residency, several years further on, at the point where you have the least time and the strongest incentive to assume the process is what it was.
Administrative changes that land in that gap are close to invisible. Nothing prompts you to re-check, and the knowledge you are working from is genuinely old.
The wider point about the sequence
This is a specific instance of something general: the further apart two exams sit, the more likely the process has changed between them, and the less likely you are to notice.
Three separate things changed about this programme during 2026 alone. The service transition in January. New test delivery software through the spring, which altered block structure and the interface. And the announcement in June, revised in August, that testing moves to designated dates from January 2029.
Someone who sat Step 1 in 2025 and takes Step 3 in 2028 will meet all three, having been prompted about none of them.
The habit worth having
Before each Step, spend twenty minutes on the programme’s own current pages covering registration, eligibility, scheduling and exam day format. Not a secondhand summary, and not what you remember.
It is a small tax and it is paid at exactly the point where you are least inclined to pay it, because you have done this before and believe you know how it works. That belief is the problem.
What has not changed
The content, the scoring and the structure of the sequence. Every change in 2026 was about administration and delivery rather than assessment. Preparation that was working continues to work; it is the surrounding process that has moved.
Frequently asked questions
Why is this the change people miss?
Because Step 3 usually comes during residency, several years after you last registered for anything. Whatever you learned about the process at Step 1 is by then out of date, and nothing prompts you to re-check.
Does it affect Step 1 or Step 2 CK for US graduates?
Those were already handled by NBME. The change consolidated Step 3 into the same place, so all three now sit with one organisation.