Every SSI Child Gets Redetermined at 18. SSA's New Rule Applies October 1.

On September 1, 2026 the Social Security Administration published SSR 26-2p, which rescinds and replaces SSR 11-2p. The notice sets its own clock in one line: “We will apply this notice on October 1, 2026.”

Social Security Rulings do not carry the force of a statute or a regulation. They are, in SSA's own words, “binding on all components of SSA” under 20 CFR 402.160(b)(1). For a provider that means it is not a proposal to comment on — it is the standard the examiner will be working from three weeks from now.

Who it reaches

The ruling covers young adults “between the ages of 18 to approximately 25,” in three situations:

• A title XVI childhood beneficiary who attains age 18 and must undergo a disability redetermination under 20 CFR 416.987. This is the automatic one — it happens to every SSI child at 18, whether or not anything about them has changed.
• A young adult filing for title II child benefits on a parent's record based on a disability that began before they attained age 22.
• Anyone on title II or XVI undergoing a continuing disability review.

The ruling names autism spectrum disorder listing 12.10 directly, in a passage about how the use of an augmentative or alternative communication device may support impairment severity.

The turn: your state's licensure law decides what your records are

SSA sorts evidence into three tiers, and the tiers are not about quality. They are about who wrote it.

An acceptable medical source is required to establish that a medically determinable impairment exists. Nothing else can do it. An other medical source — the ruling's examples are chiropractors, occupational therapists and physical therapists — cannot establish the impairment, but SSA “may use evidence from these sources to evaluate the severity of the impairment(s) and how it affects the young adult's ability to do work-related activities.” A nonmedical source is anyone else who knows the person: family, teachers, counselors, social welfare agency staff, friends, neighbors, clergy.

Then the footnote that matters here. A medical source is

“an individual who is licensed as a healthcare worker by a State and working within the scope of practice permitted under State or Federal law, or an individual who is certified by a State as a speech-language pathologist or a school psychologist and acting within the scope of practice permitted under State or Federal law.”

And SSA says out loud what follows from it: “State healthcare practice and licensure laws differ. A certain type of practitioner, e.g., a naturopath or PSW, might qualify as a medical source under one State's laws but not under another's.”

The ruling never mentions behavior analysts. That is not an oversight to read around — it is the reason the licensure sentence is the operative one. A behavior analyst licensed as a healthcare practitioner by their state is working inside that definition. A behavior analyst in a state that does not license them is not, and their records reach SSA as nonmedical evidence, alongside a teacher's.

Neither position makes a BCBA an acceptable medical source. The distinction that moves is between the second tier and the third.

What SSA says it will actually look at

• School programs. SSA will consider evidence from secondary and post-secondary programs “that had psychosocial supports, extra help, accommodations, or were in structured settings or living arrangements.” One-to-one assistance in a school or work setting is explicitly usable when evaluating function.
• Longitudinal evidence from age 16 on, medical and nonmedical, where the young adult participated in school programs or had community experiences including work — or where the case facts warrant a history longer than the standard twelve-month development period.
• Context, not just capability. The ruling's own example: a young adult with ADHD who can play video games for hours at home may still be unable to hold attention scanning items at a register, “because of the difference in context.” Observation in an unfamiliar setting, such as a consultative examination, “could lead to an erroneous conclusion about the young adult's overall functioning.”
• Accommodations do not count unless they happened. On past relevant work, SSA “cannot find that a young adult can do their PRW with accommodations unless we find the young adult actually performed that PRW with those accommodations.”

The limits

This is a consolidation, not a new standard. SSA describes it as explaining existing policy and consolidating information already in its regulations, with “a few new sections clarifying evidentiary considerations” added. The sequential evaluation process, the twelve-month duration requirement and the listings are unchanged.

It also carries a benefits provision worth knowing rather than acting on: Section 301 of the Social Security Disability Amendments of 1980 continues disability payments for certain people whose disability medically ceases while they are in a vocational rehabilitation program, and the ruling discusses continued payments for young adults in VR plans or an IEP.

Nothing in the ruling obliges a provider to do anything. It changes what a records request is likely to ask for, and when.

What you must know or do

• Pull the list of clients who turn 18 in the next twelve months. Every one of them on SSI faces a redetermination under 20 CFR 416.987 — it is automatic, and the records request lands whether or not anyone told you it was coming.
• Find out whether your state licenses behavior analysts as healthcare practitioners, and write the answer down. It decides whether your reports reach SSA as medical evidence about severity or as nonmedical evidence. If you operate in more than one state, the answer differs by state and so does the weight of the same document.
• Check whether your records for transition-age clients go back to age 16. SSA asks for longitudinal evidence from that point. A file that starts at intake two years ago cannot supply it, and nobody will tell you that until it is requested.
• Look at how your notes describe supports. One-to-one assistance, structured settings and accommodations are the things SSA says it will consider. A note that records what the client achieved without recording the support that made it possible reads, to an examiner, as evidence of capability.
• If a client works, record the accommodations they actually had. SSA will not assume any. Accommodations that were real but undocumented do not exist in this process.