The BCBA fieldwork vocabulary, decoded — each term with a real example and the part that actually trips people up.
Only behavior-analytic work counts — assessment, program design, training, supervised delivery. Admin and non-BA tasks don’t.
The BACB only counts behavior-analytic activities toward fieldwork: conducting assessments, designing and monitoring programs, writing behavior plans and clinical notes, overseeing implementation, training others, and collaborating with caregivers. It does not count non-behavioral work — billing, paperwork, general administration, non-BA trainings (CPR, crisis management), diagnostic or intellectual assessments, conferences, or course assignments.
Example Writing a client’s behavior plan counts; sitting in a staff meeting with little behavior-analytic content does not.
Watch out A lot of a real ABA job isn’t countable fieldwork. Your supervisor decides whether an activity qualifies — when in doubt, ask before you log it, because non-behavior-analytic hours are disqualified in an audit.
A designation for BCBAs who hold a doctoral degree — not a separate certification.
BCBA-D™ is a designation, not a separate certification, for a Board Certified Behavior Analyst who holds a qualifying doctoral degree. It signals doctoral training but carries the same certification, scope, and requirements as the BCBA.
Example A BCBA who earns a relevant doctoral degree may use the BCBA-D™ designation.
Watch out BCBA-D isn’t a higher license or a different exam — it’s the same credential with a doctoral marker. For fieldwork supervision, a BCBA-D is a BCBA.
An undergraduate-level certification that practices behavior analysis under BCBA supervision, with its own fieldwork requirement.
A Board Certified Assistant Behavior Analyst (BCaBA) is an undergraduate-level BACB certification. BCaBAs practice under the ongoing supervision of a BCBA and must themselves be supervised. Like the BCBA, eligibility includes coursework, supervised fieldwork, and an exam, with its own hour requirements.
Example A BCaBA works on treatment teams delivering and supporting behavior-analytic services while supervised by a BCBA.
Watch out BCBA and BCaBA fieldwork share the same structure (supervisory periods, the 60/40 rule, verification forms) but differ in specifics — always confirm the requirements for the exact credential you’re pursuing.
A graduate-level certification in behavior analysis — the credential fieldwork leads to.
A Board Certified Behavior Analyst (BCBA) is a graduate-level professional certified by the BACB to practice applied behavior analysis independently and to supervise others. Eligibility requires a qualifying master’s degree, behavior-analytic coursework, supervised fieldwork, and passing the BCBA exam.
Example After finishing coursework, 2,000 fieldwork hours, and passing the exam, a trainee becomes a BCBA and can supervise fieldwork themselves.
Watch out Fieldwork is only one of the eligibility pillars — degree, coursework, fieldwork, and exam all have to line up, and the specific rules depend on whether you apply under the 2022 or 2027 standards.
Anyone for whom behavior-analytic services are appropriate — and you must work with more than one over your fieldwork.
The BACB defines a client as any person (or group) for whom behavior-analytic services are appropriate. You must work with, be observed with, and receive feedback about multiple clients across your fieldwork (not necessarily every month). Every fieldwork hour must relate to specific client programming, under the current and the 2027 requirements alike.
Example Over your fieldwork you support several clients across different programs — not just one — so your supervisor observes you with more than one.
Watch out You can’t count work where the client is your relative, someone you’re the primary caregiver for, or a relative of the client’s primary caregiver. The “multiple clients” rule is over the whole fieldwork, so plan for variety.
You can mix Supervised and Concentrated fieldwork — a Concentrated hour is worth about 1⅓ Supervised hours — but each type’s rules are met separately.
You may accrue hours under one type or combine Supervised and Concentrated Supervised Fieldwork, within or across months. Because Concentrated requires more supervision, a Concentrated hour has about 1⅓ times the temporal value of a Supervised hour when the two are combined. You must, however, meet each type’s supervision requirements — percentage and observation — independently for the hours in that type.
Example A month split between the two types must satisfy the supervision rules for each type’s hours separately, not on a blended average.
Watch out Combining is flexible, but the bookkeeping is stricter — you can’t average supervision across types. A good tracker handles the temporal-value math for you.
The 1,500-hour pathway that requires more supervision — 7.5% under 2027 (it was 10% under 2022) — in exchange for fewer hours.
Concentrated Supervised Fieldwork lets you certify in 1,500 hours instead of 2,000, in exchange for a higher supervision rate: 7.5% under the 2027 standards (it was 10% under 2022). The 60/40 unrestricted rule still applies (at least 900 of 1,500 hours unrestricted). When combining types, a Concentrated hour has about 1⅓ times the temporal value of a Supervised hour.
Example A 100-hour month on the concentrated pathway needs 7.5 supervised hours under 2027, versus 5 on the standard pathway.
Watch out Fewer total hours sounds better, but the higher supervision rate means more of your supervisor’s time — which isn’t always available. Choose based on how much supervision you can realistically get.
The BACB process when a supervisor won’t sign your Final form even though the contract terms were met.
If a supervisor refuses or is unable to sign your Final Fieldwork Verification Form even though all supervision-contract terms have been met, you may submit a Contested Fieldwork Form to the BACB. Disputes should first be addressed directly between trainee and supervisor; a separate ethics concern can be reported through a Notice of Alleged Violation.
Example You met every contract term, but your supervisor leaves the organization and won’t sign — the contested process gives you a route forward.
Watch out This is exactly why the supervision contract should state, up front, the objective conditions under which the supervisor will or won’t sign. Clear terms protect you if it’s ever contested.
The routes to BCBA certification. From 2027 there are two (accredited degree, or coursework); Pathway 2 ends in 2032.
A “pathway” is a route to qualify for the BCBA exam. From January 1, 2027 there are two: Pathway 1 — a master’s or higher from an APBA-accredited or ABAI-accredited/recognized program — and Pathway 2 — a master’s in any field plus qualifying behavior-analytic coursework. Both require supervised fieldwork and the exam. The older Pathways 3 and 4 are discontinued in 2027, and Pathway 2 is set to end in 2032, leaving Pathway 1 as the only route.
Example Someone with a master’s in an unrelated field who then completes behavior-analytic coursework qualifies under Pathway 2 (through 2031).
Watch out The fieldwork rules are the same no matter which pathway you use — the pathway only affects your degree and coursework. If you’re on Pathway 2, plan around its 2032 sunset.
The BACB can review your fieldwork documentation at any time; documents are usually due within 14 days.
Fieldwork can be audited at any time, for any reason. If audited, you or your supervisor may be asked to submit the supervision contract, your unique fieldwork records, the Monthly Fieldwork Verification Forms, and your documentation system, within the time frame in the audit email, typically 14 days. Documents that arrive after the deadline are not reviewed, and fieldwork that is not in compliance may be disqualified.
Example Your application is selected for a quality-assurance audit; you upload your signed MVFs and supervision contract within the deadline.
Watch out This is why you log as you go, not retroactively — and why records are kept for 7 years. Recreating a year of hours in a week is how audits go wrong. A tracker that stores signed forms makes this a non-event.
The end-of-fieldwork BACB form submitted with your certification application, summarizing your total hours.
The Final Fieldwork Verification Form (F-FVF) is completed at the end of a fieldwork experience and submitted as part of your BCBA certification application. On it, the supervisor attests that the trainee completed the fieldwork in compliance with all requirements. Like the monthly form, it must be retained for at least 7 years, and applicants after Jan 1, 2027 use the 2027 version.
Example After finishing your hours, you submit your signed Final form or forms with your application.
Watch out The BACB refers to Final forms in the plural, so check with your supervisors how many your fieldwork needs. If a supervisor won’t sign despite the contract terms being met, the BACB has a Contested Fieldwork process.
All of your fieldwork must be accrued within 5 continuous years.
Your fieldwork must be completed within a span of 5 continuous years (for example, May 2020 to April 2025). Hours older than that window at the time you apply won’t count. Fieldwork also can’t begin until you’ve started qualifying coursework and secured a qualified supervisor.
Example If you started accruing hours in June 2022, all counting hours must fall on or before June 2027.
Watch out A long pause can quietly push your earliest hours out of the 5-year window. If your fieldwork stretches out, keep an eye on whether your oldest months still qualify.
Independent hours are worked with the supervisor absent; supervised hours are worked with the supervisor present.
The BACB splits fieldwork into independent hours (supervisor not present) and supervised hours (supervisor present, whether observing you with a client or meeting with you). Both are fieldwork hours and both count toward your total; the supervision percentage just sets the minimum share that must be supervised.
Example On the standard pathway, a 100-hour month might be 95 independent and 5 supervised — meeting the 5% minimum.
Watch out “Supervised” doesn’t only mean being watched with a client — a one-on-one review meeting is supervised time too. Both observation and meetings count toward your supervised hours.
One-on-one vs. a 2–10 person group. At least half of your supervision must be individual.
Individual supervision is one-on-one between you and your supervisor. Group supervision is an interactive meeting of 2 to 10 trainees (never more than 10, regardless of how many BCBAs are present). Both count, but at least 50% of your supervision in each period must be individual — group may not exceed half.
Example You need 6 supervised hours this month: at least 3 must be one-on-one; the rest can be in a group of up to 10 trainees.
Watch out Leaning on a weekly group meeting can leave you short on individual supervision even when your total supervised hours look fine. Track the two separately.
The BACB form documenting one month’s fieldwork, signed by trainee and supervisor and kept for 7 years.
The Monthly Fieldwork Verification Form (the BACB also calls it the M-FVF) documents one supervisory period — the independent and supervised hours and the observation, plus contacts on the 2022 version — and is signed by both the trainee and the supervisor. It must be signed by the last day of the calendar month following the month of supervision, and retained for at least 7 years. Only BACB forms are accepted.
Example February’s MVF is completed and signed by both parties before the end of March, then stored.
Watch out The deadline is tighter than people expect — the month after the supervision month. From 2027, the new 2027 versions of the forms are required. FieldworkABA prepares each MVF from your record and collects both signatures in-app so nothing slips.
Your supervisor watching you work with a client — 60 cumulative minutes/month (Supervised) or 90 (Concentrated) under 2027; one observation/month under the earlier 2022 rules.
The trainee must be observed working with a client in the natural environment each supervisory period. Under the 2027 standards this is a cumulative time requirement: 60 minutes per month for Supervised Fieldwork and 90 minutes for Concentrated. (Under the earlier 2022 standards it was at least one observation per month.) In-person observation is preferred, but recorded (asynchronous) or live-video (synchronous) formats are allowed.
Example Your supervisor watches a 20-minute session three times in a month — 60 cumulative minutes — meeting the 2027 Supervised-Fieldwork observation requirement.
Watch out The 2027 target is minutes, and it differs by pathway (60 vs 90). Observations logged as a single “contact” under 2022 may not add up to the required minutes under 2027 — check both if you straddle the change.
When your hours can start counting — after your first qualifying class, a qualified supervisor, and a signed supervision contract.
You may begin accruing fieldwork hours once three things are in place: you’ve started qualifying coursework (attending the first class meeting is enough), you’ve secured a qualified supervisor, and you’ve signed a supervision contract. Hours worked before all three are in place don’t count.
Example You attend your first graduate class, sign a contract with a BCBA supervisor, and start logging hours that week.
Watch out You don’t have to finish coursework first — the first class is enough — but every counting hour has to fall after the contract is signed and inside your 5-year window.
A month you don’t work in full — some requirements may need to be prorated by your supervisor.
When you don’t work a full calendar month (starting mid-month, taking leave, and so on), some requirements may need to be prorated. The Handbook gives one formula, for the 2022 requirements: if you are short on supervisor contacts, the month’s hours are prorated by the percentage of required contacts you did have. Everything else is the supervisor’s judgment, and they should be able to show how they worked it out if audited. A month still needs at least 20 hours to count at all.
Example You work only two weeks of a month; your supervisor prorates the required supervision to match the hours actually accrued.
Watch out Prorating is judgment-based, so document how it was calculated. And a partial month below 20 hours still doesn’t count.
The graduate behavior-analytic coursework required for eligibility — passing grades, within a rolling 10 years, over at least one calendar year.
To be eligible for the BCBA exam you complete graduate-level (master’s or doctoral) behavior-analytic coursework at a qualifying institution, earning a passing grade (“C” or higher, or “pass”) in each course. Coursework carries a rolling 10-year expiration, and it cannot be completed in less than one calendar year (about three consecutive semesters). You may begin accruing fieldwork hours after the first class of qualifying coursework.
Example A master’s program spread over two years, with passing grades in each required course, meets the coursework requirement.
Watch out Coursework older than 10 years at the time you apply won’t count, and under the 2027 requirements a degree or the full coursework cannot be completed in less than one calendar year. You can start fieldwork after your first class — you don’t have to finish coursework first.
An entry-level BACB credential that delivers ABA under close supervision — not the same as BCBA fieldwork.
A Registered Behavior Technician (RBT) is the BACB’s entry-level, paraprofessional credential. RBTs deliver behavior-analytic services under close, ongoing supervision. It requires a 40-hour training, a competency assessment, a background check, and an exam — not the 1,500/2,000-hour supervised fieldwork that BCBA and BCaBA candidates complete. An RBT Supervisor must be certified as a BCBA or BCaBA.
Example Many BCBA trainees work as RBTs while accruing fieldwork — but that hands-on delivery is largely restricted activity.
Watch out Working as an RBT is valuable experience, but direct delivery is restricted for BCBA fieldwork — so a full-time RBT can hit the 40% restricted cap fast. Balance it with unrestricted activities.
The supervisor who signs verification forms on behalf of an organization when several supervisors share one trainee.
When multiple supervisors at one organization share responsibility for a trainee, a responsible supervisor signs the Monthly and Final Fieldwork Verification Forms on the organization’s behalf, attesting that all supervisors met the requirements. The BACB provides specific “Multiple Supervisors at One Organization” versions of the forms for this.
Example Three BCBAs at a clinic supervise you; one is named the responsible supervisor and signs the organization’s monthly form.
Watch out Multiple supervisors and settings are allowed, but the supervision contract must include every relevant party and clearly define roles — and you use the organization versions of the forms, not the individual ones.
The direct delivery of therapeutic or instructional procedures to a client — capped at no more than 40% of your total hours.
The BACB defines restricted activities as “the delivery of therapeutic or instructional procedures to a client” — the hands-on, technician-level implementation work. It counts toward fieldwork but is capped at 40% of total hours, so trainees spend enough time building the analytic skills the credential is about.
Example Directly running a skill-acquisition program or implementing a behavior-reduction plan with a client is restricted. Important experience, but it can never exceed 40% of your hours.
Watch out Trainees working full-time as RBTs often accumulate restricted hours quickly and hit the 40% ceiling long before 2,000 hours. Note the BACB’s own caveat: this restriction “does not necessarily refer to all time spent working with a client.”
At least 60% of your total fieldwork hours must be unrestricted activities, and no more than 40% restricted.
Across your entire fieldwork experience, at least 60% of your total hours must be unrestricted activities and no more than 40% restricted. For 2,000 Supervised Fieldwork hours that is at least 1,200 unrestricted and at most 800 restricted; for 1,500 Concentrated hours it is at least 900 and at most 600. The BACB measures this over your total fieldwork — not per supervisory period.
Example You finish with 2,000 hours: 1,300 unrestricted and 700 restricted. Unrestricted is 65% of the total, so you clear the 60% floor and stay under the 40% restricted ceiling. Compliant.
Watch out Because it is measured on your final total, and the Handbook describes no way to remove hours later to fix the ratio, letting restricted quietly pass 40% forces your total above 2,000 (or 1,500) just to rebalance — and those extra hours must be unrestricted. Watch the ratio every month, not at the end.
The standard 2,000-hour pathway, with 5% of each month’s hours under supervision.
Supervised Fieldwork is the standard pathway: 2,000 hours total, with at least 5% of the hours in each supervisory period supervised. It is one of two fieldwork types; the other, Concentrated Supervised Fieldwork, requires fewer hours but more supervision.
Example At 5%, a month with 100 fieldwork hours needs at least 5 supervised hours.
Watch out You may combine Supervised and Concentrated fieldwork, but each type’s supervision requirements (percentage, observation, contacts) must be met independently. You can’t average across the two.
A written agreement the trainee and supervisor must sign before fieldwork begins.
The BACB requires the trainee and supervisor to develop and sign a written contract at the outset of the supervisory relationship. It spells out each party’s responsibilities, the activities and training objectives, the conditions under which the supervisor will not sign a verification form, the consequences of not meeting responsibilities, and an attestation to follow the BACB ethics requirements.
Example Before your first fieldwork hour, you and your supervisor sign a contract confirming they’ve completed the 8-hour training and defining how supervision will work.
Watch out Fieldwork can’t start until the contract is in place (and you’ve begun qualifying coursework). Retain it — the BACB can request it in an audit, and it’s kept for at least 7 years.
The share of each month’s hours that must be supervised — 5% Supervised and 7.5% Concentrated under 2027 (Concentrated was 10% under the earlier 2022 rules).
The supervision percentage is the minimum share of each supervisory period’s fieldwork hours that must be supervised. Under the 2027 standards it is 5% for Supervised Fieldwork and 7.5% for Concentrated. (Under the earlier 2022 standards, Concentrated was 10%.) At least half of that supervision must be individual, not group.
Example Standard pathway, 120 hours this month → at least 6 supervised hours, and at least 3 of them one-on-one.
Watch out The percentage is per month, so a big month needs proportionally more supervision. Discovering late in a busy month that you’re short on supervised hours is a common way to make a month not count.
Who may supervise fieldwork — since January 1, 2026, only active BCBAs in good standing.
A fieldwork supervisor must be an active BCBA in good standing with no current disciplinary sanctions (certified 1+ year with the ongoing supervision CEU, or certified under a year with monthly consultation from a qualified consulting supervisor). Supervisors must also complete the 8-hour supervision training before signing a supervision contract. This is the same under the current and the 2027 requirements: the routes for a licensed psychologist or a non-certified Verified Course Sequence instructor ended on January 1, 2026.
Example A BCBA certified for 2 years who has completed the 8-hour supervision training and meets the supervision CEU can supervise you today.
Watch out The supervisor may not be related to you, your subordinate, employed by you, or in another multiple relationship with you (working at the same organization is fine). And being an RBT supervisor doesn’t make someone a qualified fieldwork supervisor — the requirements are different.
A real-time interaction between supervisor and trainee. Under 2027 there is no fixed monthly count; the earlier 2022 rules required 4/month (6 for Concentrated).
A supervisory contact is a real-time interaction between supervisor and trainee, in an individual or group format. The Handbook sets no minimum length for one. Under the 2027 standards there is no fixed monthly contact count — the requirement is the supervision percentage plus cumulative observation minutes with a client. (Under the earlier 2022 standards you needed at least 4 contacts per month on the standard pathway and 6 on concentrated.)
Example Under 2027, instead of counting meetings you make sure each month hits its supervision percentage and observation minutes.
Watch out A contact is not the same as an observation. Under the 2022 requirements you need your contacts and the required observation of you working with a client; under 2027 the contacts requirement is gone and the observation is measured in minutes.
One calendar month — the unit fieldwork is counted, supervised, and verified in.
A supervisory period is one calendar month. Each month must stand on its own: between 20 and 160 hours to count under the 2027 standards (the 2022 cap was 130), with that month’s supervision percentage and client observation met, and an MVF signed for it.
Example Log 18 hours in a month and it does not count — you were under the 20-hour minimum for that period.
Watch out Hours don’t roll over. A month below the minimum is lost; hours above the monthly maximum are capped. If you work a partial month, some requirements (like contacts) may need to be prorated by your supervisor.
The BACB blueprint of what a BCBA must know — your fieldwork should build these skills. The 6th edition took effect in 2025.
The BCBA Test Content Outline (formerly the “Task List”) is the BACB’s blueprint of the knowledge and skills a BCBA must demonstrate, and the basis for the certification exam. The 6th edition took effect January 1, 2025. There is no longer any BACB document called a “task list” — only Test Content Outlines. Your fieldwork should focus on acquiring competence across its content areas, not just logging hours.
Example Rather than only running programs, you deliberately get experience with assessment, program design, and supervision — the areas the outline covers.
Watch out It’s easy to accumulate hours that are heavy on one skill. Supervisors are expected to steer your fieldwork toward broad coverage of the outline, which also prepares you for the exam.
The fieldwork rules effective Jan 1, 2027 — duration-based observation, lower concentrated supervision, higher monthly cap, BCBA-only supervisors.
Starting January 1, 2027, hours stay at 2,000 / 1,500 and the 60/40 rule is unchanged, but: fixed monthly contact counts are removed in favor of the supervision percentage plus cumulative observation minutes (60 min Supervised, 90 min Concentrated); concentrated supervision drops from 10% to 7.5%; the monthly cap rises from 130 to 160 hours; and applicants use the new 2027 verification forms. (Supervisors already had to be active BCBAs: the psychologist and Verified Course Sequence instructor routes ended on January 1, 2026.) More broadly, the 2027 update discontinues BCBA eligibility Pathways 3 and 4, and Pathway 2 (coursework) is set to end in 2032 — leaving the accredited-degree Pathway 1 as the only route.
Example Under 2027, instead of counting four meetings, you ensure your supervision percentage is met and you accumulate at least 60 minutes of observation across the month (Supervised pathway).
Watch out Hours logged under 2022 rules don’t automatically satisfy 2027 requirements — especially observation, which changes from “a contact” to minutes and differs by pathway. If your fieldwork spans the transition, check how your existing months are counted.
The behavior-analytic work a BCBA typically does — assessment, program design, analysis, training — which must be at least 60% of your hours.
Unrestricted activities are the tasks “most likely to be performed by a BCBA.” The BACB lists examples including observation and data collection; conducting behavior-analytic assessments (functional analyses, preference assessments); data graphing and analysis; writing and revising behavior programs; training staff and caregivers; meeting with clients about programming; and researching literature relevant to a current client. They must make up at least 60% of total hours.
Example Running a preference assessment, writing the behavior plan from the results, and training the RBT to implement it are all unrestricted — even though some happen with a client present.
Watch out Not all client time is restricted, and not all “desk work” is unrestricted. What counts is the activity, not merely whether a client is in the room. Only behavior-analytic activities count at all — billing, non-behavioral trainings, and coursework do not.
Every definition here is checked against the BACB’s own materials — go read the primary sources:
New rules coming in 2027? See our 2022 vs. 2027 fieldwork changes guide.
FieldworkABA checks the 60/40 ratio, supervision, and monthly rules automatically as you log — so the vocabulary above just happens in the background. Free for 14 days.