ABA Roles Explained
A plain-English overview of how ABA agencies, BCBAs, BCaBAs, RBTs, BTs, and ABA therapists generally fit together on a case.
This is a general educational overview, not legal or scope-of-practice advice. Credential rules are set by the BACB and can vary by employer and state — see the disclaimer below.
The ABA team at a glance
An ABA case usually involves an agency coordinating the work, plus one or more providers contributing at different credential and role levels — BCBA, BCaBA, RBT, and BT / ABA therapist — depending on the setting and the client's needs.
To be explicit up front: this is a general educational overview, not legal or scope-of-practice advice. See the disclaimer further down this page for specifics on how to confirm current requirements.
ABA agency role
An ABA agency generally coordinates the business and operational side of a case: posting and managing open cases, hiring or contracting providers, and supporting day-to-day service delivery. "Agency" is an organizational role, not a BACB credential.
Before posting or accepting a case involving an agency, it's worth confirming: what the case actually involves, how supervision is structured for the providers on it, and whether pay and schedule details are clearly spelled out.
BCBA role
BCBA stands for Board Certified Behavior Analyst — a graduate-level certification in behavior analysis issued by the BACB. Depending on the setting and role, a BCBA often oversees clinical programming, assessment, and supervision, and directs case-level decisions.
A BCBA can practice independently and can supervise both BCaBAs and RBTs. Exactly what that looks like on a given case, employer, or state can vary — confirm specifics directly with the BACB .
BCaBA role
BCaBA stands for Board Certified Assistant Behavior Analyst — an entry-level, assistant-level certification issued by the BACB. A BCaBA may support behavior-analytic services, depending on the credential and the applicable rules for the setting, but always under the ongoing supervision of a BCBA.
A BCaBA may also oversee RBTs. As with every role on this page, confirm the exact supervision arrangement and scope for a specific case directly with the BACB and the applicable employer.
RBT role
RBT stands for Registered Behavior Technician — a paraprofessional certification in behavior analysis issued by the BACB. RBTs work under the direction and close, ongoing supervision of a qualified RBT Supervisor, typically a BCBA or BCaBA.
Want the fuller picture on becoming an RBT specifically? See how to become an RBT.
BT / ABA therapist role
"BT" (Behavior Technician) is commonly used by agencies and employers as a general job title for direct-service ABA work. It is not automatically the same as holding the BACB's RBT credential — a person titled "BT" may hold the RBT credential, may be working toward it, or may not hold it at all.
"ABA therapist" is an even broader, informal phrase people use to refer to various ABA provider roles. It isn't a single defined credential — what it refers to varies by employer, the actual credential held, and the state or context. If credential status matters for a specific case or role, it's worth confirming directly rather than assuming a title implies a particular certification.
How supervision and case support usually fit together
At a general level, ABA teams are commonly organized around a supervision umbrella: RBTs typically work under BCBA or BCaBA oversight, and BCaBAs can supervise RBTs while their own work remains under the ongoing supervision of a BCBA. BCBAs are the credential in this group that can practice independently.
These are general patterns, not scope-of-practice rules. Confirm the specific supervision structure that applies to a given case, employer, or state directly with the BACB and the applicable employer or regulator — see the disclaimer below.
Which ABA credentials involve exams?
The BACB administers certification exams for RBT, BCaBA, and BCBA candidates. All three are multiple-choice, computer-based exams delivered through Pearson VUE at authorized testing centers.
This page intentionally does not list exact question counts or time limits, since those specifics can change. For current exam details, go directly to the BACB's examination information page and Pearson VUE.
Credential requirements, supervision rules, and scope of practice for agencies, BCBAs, BCaBAs, RBTs, and BTs can change and can vary by employer and by state. Nothing on this page should be treated as legal advice or as a definitive statement of what any role or credential permits.
Always confirm current requirements and scope of practice directly with the Behavior Analyst Certification Board (BACB) — including its upcoming changes page for the current timeline on RBT, BCaBA, and BCBA requirement updates — and with the applicable employer or state regulator.
How ABA Cases connects roles, credentials, and case fit
ABA Cases helps match providers to cases based on role, credential, schedule, setting, and location — so an RBT-level case surfaces for RBTs, a BCBA-level case surfaces for BCBAs, and so on. What ABA Cases does not do is determine or verify whether someone holds a specific credential, or what that credential legally permits — that responsibility belongs to the BACB and to the hiring agency or employer.
Agencies can post open ABA cases by the role and credential they need, and providers can join ABA case alerts to hear about matching cases as they're posted. Agencies hiring across multiple roles can also see ABA staffing for agencies.
FAQ
More on ABA roles and credentials
Last reviewed against BACB public resources: July 2026. Requirements can change, so always confirm current details with the BACB.
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