The CPACC is IAAP's international foundation certification in accessibility. Study the 2023 Body of Knowledge: Domain One (disabilities, challenges, and assistive technologies) and Domain Two (accessibility and universal design) each carry 40% of the exam, and Domain Three (standards, laws, and management strategies) carries 20%. The exam is scored on a 200–800 scale with a passing mark of 600, results arrive four to six weeks after the session, and retakes follow specific session and rate rules. Certification lasts three years and renews with 45 educational credits. Book through IAAP's six annual sessions, and confirm the question count and time limit on IAAP's current pages, since the documents reviewed for this guide do not state them.
What the CPACC credential actually is
A professional certification in accessibility fundamentals issued by IAAP, international in scope and distinct from a course completion certificate.
The Certified Professional in Accessibility Core Competencies (CPACC) is a professional certification from the International Association of Accessibility Professionals (IAAP), a division of G3ict. IAAP states that its professional certifications are international in scope, so no single country's law determines the credential. That matters when you read jurisdiction-specific material: it is exam content, not a license condition.
IAAP distinguishes a professional certification from a certificate of completion. A certificate only documents that you finished a class or training program. The CPACC instead requires qualifying as a candidate, passing an exam, and maintaining ongoing education credits.
IAAP currently offers three professional certifications: CPACC, Web Accessibility Specialist (WAS), and Accessible Document Specialist (ADS). The Certified Professional in Web Accessibility (CPWA) designation is earned by passing both the CPACC and the WAS. The built-environment credential, CPABE, was discontinued in 2024 and is no longer offered.
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
Eligibility and the application process
Apply through the IAAP site, document your experience accurately, and expect a decision within about three business days.
Before applying, the handbook asks you to choose the certification that fits your role, review the eligibility and prerequisites, confirm your language option, read the Certification Content Outline, and select one of the six exam sessions offered each year. Applications must be completed in English; supporting documents may be in any language.
The application itself is a formal declaration of your qualifications, so you must complete it personally. You create or use an IAAP account, navigate to the Certification Portal, apply, and wait for approval, which can take up to three business days. After approval you pay for the exam and then schedule it.
Applications are often rejected because the applicant does not meet experience prerequisites, did not follow the instructions for demonstrating experience, or did not document roles and responsibilities as required. IAAP describes professional certifications as requiring first-hand job experience, so prepare that documentation before you start. If your application is rejected, you can appeal through the Certification Portal; the review takes three to five business days and considers only the information you submit there.
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
Delivery options, scheduling, and payment
You can test remotely with Pearson proctoring, at a Pearson test center, or at a hosted exam event, subject to location limits and the session calendar.
Three delivery options exist. Pearson remote proctoring lets you test from home or another private location under a live proctor via webcam and microphone, with the whole session recorded. Pearson test centers operate in 132 countries and territories, with more than 700 locations worldwide. Hosted exam events are pre-approved sessions where an organization or event proctors two or more candidates in person.
Location matters for remote testing: Pearson remote proctoring is not available in China, Cuba, Iran, North Korea, Russia, the Russian Federation, Sudan, or Syria. Candidates in those places need a test center or hosted event.
Exam sessions run six times a year, each with its own application and payment deadlines. Payment is due before scheduling instructions are issued, and payment dates close one week after applications close. If you pay by invoice after the due date, your application moves to the next session automatically. Rescheduling requires 72 hours' notice, though IAAP works with candidates facing genuine emergencies at no fee; canceling does not entitle you to a refund, and cancellation fees may apply.
Accommodations follow an honor system, with no proof required from candidates with disabilities. If you need specific accommodations at a Pearson test center, allow ten business days for coordination.
One format detail needs your own confirmation: the documents reviewed for this guide — the Body of Knowledge and the certification handbook — do not state the number of questions or the time limit. Check the IAAP Certification Overview and About CPACC pages, and the current handbook, before you book.
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
Scoring, results, and retakes
Scores run from 200 to 800 with a passing mark of 600; results arrive four to six weeks after the session ends.
IAAP does not issue percentage scores. You receive a scale score from 200 to 800, and 600 is the passing mark. Alongside the score you get domain feedback rated as above-standard, near-standard, or below-standard rather than per-answer detail; IAAP does not share which answers were correct.
Results appear in your Certification Portal within four to six weeks after the exam session ends, not on the exam day. If you believe the scoring was wrong, you can request a rescoring for a $50 fee or a manual review for $150; both are completed within thirty business days of the paid request.
Retake rules are specific. Candidates who do not pass must wait two exam sessions before reapplying, may retake once at a reduced rate within one year of the first attempt, and may retake up to two times within that year. A retake also requires a new application for the session in which you plan to sit the exam.
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
The three domains and their weights
The 2023 Body of Knowledge content outline splits the exam into three domains weighted 40%, 40%, and 20%.
The document IAAP points candidates to is the CPACC Body of Knowledge, and its content outline states each domain's weight directly. The table below shows the full map, so you can allocate study time by official weight rather than by guesswork.
Domain One is one of the two largest areas. Its subareas ask you to characterize and differentiate theoretical models of disability, including the strengths and weaknesses of their underlying assumptions; to know the categories and characteristics of disabilities, associated barriers, and solutions; and to identify assistive technologies and adaptive strategies for permanent, temporary, and episodic disabilities across both ICT and the physical world. The domain also covers disability demographics and statistics and applying disability etiquette.
A useful study habit — advice, not an official requirement — is writing one sentence per model stating where it locates the problem of disability and what solution follows, then checking your sentences against the BoK's own discussions.
- Medical model
- Social model
- Biopsychosocial model
- Economic model
- Functional solutions model
- Social identity or cultural affiliation model
- Charity model
| Domain | Weight |
|---|---|
| Domain One: Disabilities, Challenges, and Assistive Technologies | 40% |
| Domain Two: Accessibility and Universal Design | 40% |
| Domain Three: Standards, Laws, and Management Strategies | 20% |
Official sources: IAAP CPACC Body of Knowledge (2023) — Content outline table of contents: domain weights, subareas, models, and Domain Three instruments
WCAG structure, conformance levels, and a practice drill
Know the four layers of WCAG guidance, the three conformance levels, and how version 2.2 relates to earlier versions.
WCAG is organized in layers. At the top sit four principles — perceivable, operable, understandable, and robust — which the W3C describes as the foundation of web accessibility. Beneath them are guidelines, then testable success criteria that are not technology-specific, then sufficient and advisory techniques that show how to meet the criteria in practice.
Conformance levels are cumulative in meaning: A is the lowest, AA sits above it, and AAA is the highest. The current W3C Recommendation is WCAG 2.2, published in December 2024. It extends WCAG 2.1 additively, so content conforming to 2.2 also conforms to 2.0 and 2.1, and 2.2 removed the 4.1.1 Parsing criterion. The BoK's outline ties its web accessibility principles to WCAG 2.1, so study both relationships rather than treating one version as obsolete.
The classification skill is deciding which principle a described failure belongs to. The exercise below practices exactly that with single-channel failures, so each answer is unambiguous.
Practice exercise
Classify each barrier under the WCAG principle it primarily fails — Perceivable, Operable, Understandable, or Robust. (a) Body text set in very low contrast against its background. (b) A navigation menu that opens only on mouse hover, with no keyboard route to it. (c) Setup instructions written entirely in undefined internal jargon. (d) A custom accordion whose expanded or collapsed state is never exposed in the code for assistive technologies.
Show answer
(a) Perceivable. (b) Operable. (c) Understandable. (d) Robust.
Each item isolates one failure channel, so the mapping is unique. Low contrast leaves content present but not perceivable to many eyes. A hover-only menu blocks operation by anyone not using a mouse, which is an operability failure even though the menu is visible on screen. Undefined jargon leaves meaning unclear no matter how the content is displayed or triggered. An accordion whose state is not exposed in the code cannot be interpreted reliably by assistive technologies, which is the robustness concern. If two answers felt defensible, re-read which sense, input method, meaning, or code contract the description actually breaks.
Official sources: Web Content Accessibility Guidelines (WCAG) 2.2, W3C Recommendation — Abstract, layers of guidance, conformance levels, and version relationships; IAAP CPACC Body of Knowledge (2023) — Content outline table of contents: domain weights, subareas, models, and Domain Three instruments
Laws and standards the Body of Knowledge names
Domain Three covers international, regional, national, domain-specific, and procurement instruments; the BoK names them, and its chapters carry the detail.
Domain Three covers the legal and regulatory landscape in layers, and the BoK's outline names the specific instruments to study. At the international level it lists the Universal Declaration of Human Rights, the Convention on the Rights of Persons with Disabilities, and the Marrakesh Treaty.
Regional instruments include the EU Charter of Fundamental Rights, the African Charter on Human and People's Rights, and the Inter-American Convention on the Elimination of All Forms of Discrimination Against Persons with Disabilities. National and provincial coverage includes the Equality Act 2010, the Americans with Disabilities Act of 1990, the Ontarians with Disabilities Act of 2001, and disability laws in EU countries.
The domain also covers domain-specific and government procurement laws and applying accessibility standards and regulations to ICT. Treat the outline as your checklist: it shows which instruments are listed, while the BoK's own chapters carry the detail you need for each one. Because IAAP's certification is international, expect breadth across jurisdictions rather than depth in one country's law.
Official sources: IAAP CPACC Body of Knowledge (2023) — Content outline table of contents: domain weights, subareas, models, and Domain Three instruments
Organizational implementation as a domain
Domain Three closes with governance topics for integrating ICT accessibility across an organization.
The outline's final domain area, integrating ICT accessibility across the organization, covers W3C Web Accessibility Initiative recommendations, maturity models, management champions, evaluating for accessibility, recruiting and hiring, communication management strategies, legal and public-relations implications, and purchasing processes and public procurement.
These are program-level governance topics rather than coding tasks, which is one way the CPACC differs from the technical WAS certification. Read the BoK's own chapter on each topic; the outline confirms the headings, not the underlying rules, so this guide does not restate them.
Official sources: IAAP CPACC Body of Knowledge (2023) — Content outline table of contents: domain weights, subareas, models, and Domain Three instruments
Keeping the credential after you pass
The CPACC is valid for three years and renews with 45 educational credits, earned through professional development, sharing knowledge, and structured volunteering.
IAAP certifications expire after three years and renew by earning the required education credits — 45 for the CPACC. Professional development is the primary route: structured content directly aligned with the certification's Content Outline, such as webinars, workshops, courses, and conference presentations.
The conditions are specific. Content under 15 minutes earns nothing, viewing the same material twice counts once, and podcasts and reading books are not currently approved. Sharing Your Knowledge credits require an unpaid, structured audience of other accessibility professionals; IAAP also credits preparation time at twice the length of the delivered content. Structured volunteering is capped at 10 credits per year.
Renewal costs depend on membership: with continuous, active IAAP membership across the full three-year period, members pay nothing to renew. If you miss the date, a 30-day grace period after expiration lets you complete the renewal form without retaking the exam — but credits must be earned before the expiration date itself.
The credit arithmetic is worth practicing once, because it is exact.
Practice exercise
Assume these handbook conditions: during one renewal cycle you watch a 50-minute accessibility webinar once (a first-time viewing), and you later give one unpaid, one-hour presentation of new material to an audience of other accessibility professionals. How many of the 45 required CPACC credits do the two activities earn together, and how many credits remain outstanding?
Show answer
4 credits earned in total, leaving 41 of the 45 still to earn.
The handbook's time bands award 45–60 minutes of qualifying content 1.0 credit, so the 50-minute first viewing earns 1.0. For unpaid presenting, IAAP credits both delivery and preparation: a one-hour presentation earns 1 presentation credit plus 2 preparation credits, or 3 in total. Adding them gives 1.0 + 3 = 4, and 45 − 4 = 41 outstanding. The result depends on every stated condition — first-time viewing, content of at least 15 minutes, unpaid delivery, a professional audience, and new material — so change any premise and the totals change.
| Length of qualifying content | Credits earned |
|---|---|
| Under 15 minutes | 0 |
| 15–30 minutes | 0.5 |
| 31–44 minutes | 0.75 |
| 45–60 minutes | 1.0 |
| 61–75 minutes | 1.25 |
| 76–90 minutes | 1.5 |
| 91–105 minutes | 1.75 |
| 106–120 minutes | 2.0 |
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
How to structure your preparation
Work from the Body of Knowledge outward, book against the six-session calendar, and use IAAP's own support channels for anything this guide could not verify.
The handbook's preparation sequence is the most defensible starting point: review the eligibility and prerequisites, read the Certification Content Outline, study the Body of Knowledge, and use the resources listed on the certification's About page. IAAP also mentions an optional Princeton University CPACC preparation course — free for IAAP members, paid for non-members.
Plan backwards from the calendar. Six sessions run each year with distinct application, payment, and scheduling deadlines, so pick your target session early and note when its application window opens. If you need accommodations beyond extra time, build the ten-business-day coordination lead into your plan.
- Map each Content Outline domain to its BoK sections before you study, so your time follows the official 40/40/20 weights.
- Practice classifying barriers under the four WCAG principles until each answer feels immediate.
- Learn the international, regional, and national instruments in Domain Three by name and jurisdiction, then read the BoK's chapter for each.
- Try the free practice questions, then attend IAAP's Certification Office Hours for anything unclear.
- Confirm the question count and time limit on the current IAAP Certification Overview page before booking.
Official sources: IAAP Professional Certification Handbook, January 2026 (Edition #2) — Sections on applications, exam delivery, results, retakes, and renewal credits
Official sources
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