- How CIES Scheduling Actually Works
- The Real Timeline: Application to Exam Day
- The Six-Month vs. 90-Day Conflict
- Exam Day Logistics: Center vs. Online
- Fees and Money Deadlines
- Planning Backward from Your Exam Date
- Exam Timing for Florida Mold Licensing
- After the Exam: Scores, Retakes and Renewal Clock
- Frequently Asked Questions
- No fixed 2026 CIES exam calendar was verified; scheduling follows your approved application, not a published test date.
- The online application page cites six months including the exam; the handbook says 90 days. Confirm with ACAC.
- The exam is 120 multiple-choice questions in three hours, delivered by proctored test center or online video.
- The board reportedly meets every four to six weeks and must approve applications unanimously, so submit early.
How CIES Scheduling Actually Works
Candidates searching for "CIES exam dates 2026" usually expect a table of testing windows like those used by some seasonal credentials. For the Council-certified Indoor Environmental Supervisor (CIES) credential, that is not how the process works, and it is better to know that now than to wait for a calendar that is not coming.
CIES is issued by the American Council for Accredited Certification (ACAC) through its CIES Certification Board, and the program is accredited by the Council for Engineering and Scientific Specialty Boards (CESB). The examination itself is administered through Kryterion, Inc. as a computer-delivered test, with both proctored testing-center and online video proctoring available. As of our most recent check of the issuer's materials on October 6, 2026, we did not find a published set of fixed 2026 sitting dates, and we are not going to invent one for you.
What exists instead is an application-driven pipeline. You do not simply pick a date and show up; you first earn board approval, and only then does the exam scheduling step open. That makes the "dates" that matter to you personal ones: when you submit, when the board reviews, and when your approved exam eligibility window opens and closes.
The Real Timeline: Application to Exam Day
Because the exam follows approval, your effective schedule is built from a sequence of stages. Each one can slow you down if you treat it casually.
Stage 1: Confirm you qualify
Eligibility is experience-heavy. The three pathways documented by ACAC are:
- A related four-year postsecondary degree, or 30 qualifying college credits, plus four years of documented indoor environmental remediation experience.
- A related two-year degree, or 15 qualifying credits, plus six years of experience.
- A high school diploma or GED plus eight years of experience.
Your experience must span at least three of five areas: asbestos, lead, hazardous materials, microbial/allergens, and industrial hygiene/chemicals/toxicology. If you are unsure whether your background clears the bar, read CIES Requirements 2026: Eligibility, Prerequisites & How to Qualify before spending a dollar.
Stage 2: Assemble the file
This is where most calendars quietly slip. The application requires four project sheets, educational evidence where applicable, and experience verification. ACAC describes each project sheet as three parts: the problem, your own responsibilities and actions, and the outcome. Writing four credible sheets that reflect your personal role (not your crew's) takes real time, especially if you need to pull records from old jobs. Required email verifications also depend on other people responding, which you cannot control.
Stage 3: Board review
The current ACAC application page states that applications need unanimous board approval and that the board meets every four to six weeks. Practically, that means a complete submission can sit until the next meeting, and an incomplete one can miss a cycle entirely. A submission made one day after a meeting may wait the better part of six weeks for its first review.
Stage 4: Schedule and sit the exam
Once approved, you schedule through the proctoring process, choosing a testing center or the online video option. The exam is 120 multiple-choice questions with at least four answer options each, three hours, closed book, and the passing score is 75%, set with the Modified Angoff method. See CIES Passing Score 2026: Exactly What You Need to Pass for how to interpret that threshold.
The Six-Month vs. 90-Day Conflict
This is the single most important date-related detail, and it is also where ACAC's own materials disagree.
| Source | What it says | Implication |
|---|---|---|
| Current ACAC online application page | Online submission, required email verifications, six months including the examination, unanimous board approval | Your clock may cover approval and testing combined |
| CIES Candidate Handbook | 90 days; describes notarized forms and employer affidavits | A shorter clock and a more paper-driven process |
We were unable to resolve this conflict from public materials, and we will not pretend otherwise. The handbook is undated, and no separately identified 2026 exam version was verified. The sensible approach is to assume the stricter reading (90 days) for planning purposes until ACAC confirms in writing which applies to your submission. If your timeline would only work under the six-month reading, ask first.
Exam Day Logistics: Center vs. Online
Both delivery modes are available, and the choice affects how much preparation your exam day needs.
Testing center
- Two forms of government-issued ID are required, including one photo ID.
- ACAC's current Examinations page says to arrive 15 minutes early; the handbook says 30. Plan for 30 and you are covered either way.
Online video proctoring
- You supply the computer, an approved webcam and a private location.
- ACAC specifies at least 2 Mbps upload and download speed.
- Phones and tablets are excluded as test devices.
Run your connection test and webcam check days ahead, not that morning. A failed equipment check on exam day can cost you an attempt window and, potentially, fees.
What the exam experience looks like
The handbook describes a fixed question set with randomized item and answer order, so a classmate's recollection of question sequence will not match yours. Adaptive testing is not described. Calculator permission could not be verified, so confirm it with ACAC before test day rather than assuming either way. Scores are available electronically immediately after testing and are confirmed by email, which is useful if you are racing a deadline and need to know quickly whether to plan a retake. The scored versus unscored item split is not published.
Key Takeaway
Book the earliest slot you are genuinely ready for, then confirm ID, arrival time and calculator rules in writing. The two arrival-time figures in ACAC's own materials mean you should assume the stricter one.
Fees and Money Deadlines
Fees are part of your schedule because the initial payment structure ties into when your two-year certification term begins. In USD, per ACAC's Fees and Payments page:
| Item | Amount |
|---|---|
| Examination fee | $100 |
| Certification fee (includes a $100 nonrefundable processing fee) | $400 |
| Initial total, two-year term | $500 |
| Retake | $100 |
| Renewal | $400 |
No separate member versus non-member schedule is published. Note the nonrefundable $100 processing component: if your application stalls or you withdraw, part of your spend may not come back. For the full picture, including what employers sometimes reimburse, see CIES Certification Cost 2026: Complete Pricing Breakdown.
Planning Backward from Your Exam Date
Since the calendar is yours to build, work backward from a target sitting. The one place generic study technique earns space here is in assigning CIES's five competencies to specific weeks. Those five published areas are unweighted, so do not assume any one dominates the test. Our own advice is to front-load whichever area is weakest for your field background.
Asbestos and lead foundations
- Domain 1 (asbestos) and Domain 2 (lead) together, anchored in 40 CFR 763, 40 CFR 61 Subpart M, 29 CFR 1926.1101, 40 CFR 745 and 29 CFR 1926.62.
- Focus on engineering controls, removal methods, worker safety and regulatory triggers.
Hazardous materials and chemicals
- Domain 3 (hazardous materials) and Domain 5 (chemicals), using 29 CFR 1910.120 and NIOSH Respirator Selection Logic.
- Study the mercury reference caveat: ACAC's handbook sections describe it differently, so cross-check both.
Microbial contaminants and allergens, then full review
- Domain 4 using the New York City guidelines on fungi in indoor environments (2008).
- Finish with timed sets of 120 questions in three hours to build pacing.
Mold-only practitioners often underestimate Domains 1, 2, 3 and 5, because CIES is broader than mold work. For depth on each area, see CIES Exam Domains 2026: Complete Guide to All 5 Content Areas, and for a fuller preparation plan, CIES Study Guide 2026: How to Pass on Your First Attempt. If you want to gauge how demanding the content is before committing to a date, How Hard Is the CIES Exam? Complete Difficulty Guide 2026 helps calibrate. When you want exam-style repetition, the CIES practice tests are built around the five competency areas.
One honest caveat: ACAC does not develop or administer preparation courses, no mandatory course or minimum training-hour requirement is published, and its prep directory did not explicitly list CIES when we checked. Your timeline should therefore budget self-directed reference reading, since the public study guide itself warns that its selected pages are examples rather than exhaustive coverage.
Exam Timing for Florida Mold Licensing
Some candidates take CIES chiefly because Florida's mold-related services licensing recognizes certain approved examinations. Indexed content from the Florida Department of Business and Professional Regulation lists CIES among mold-remediation examinations, though a direct retrieval of that page returned an access error when we tried, so treat that listing as indexed text rather than a fully verified current rule.
The key timing lesson is that passing the exam is only one component. The Florida remediator initial-license checklist also involves a separate application, education and experience requirements, fingerprinting and insurance. Those steps run on the state's schedule, independent of ACAC's. Also keep in mind that a licensing-only exam result does not itself confer CIES certification. If your goal is the credential, complete ACAC's application and approval process; if your goal is only state licensing, verify directly with the regulator which route applies to you. State licensing eligibility and ACAC certification eligibility are different questions.
After the Exam: Scores, Retakes and Renewal Clock
Because results are delivered electronically right away and confirmed by email, you will know your outcome the same day. A retake costs $100, but remember your application window: under the six-month reading it includes the examination, so a failed first attempt consumes some of the time you have left to retest. Under the 90-day reading, there is even less room. Build slack into your plan rather than scheduling a first attempt on the last possible day.
Curious about the odds? The public data is thin. No numerical 2025 or 2026 CIES pass rate was verified, the issuer's 2025 pass-ratio report omits CIES, and the two 2024 ACAC reports conflict with each other. Read the details in CIES Pass Rate 2026: What the Data Shows before relying on any figure you find elsewhere.
Your two-year renewal clock
Certification runs two years. ACAC's current Recertification Procedures specify 40 recertification credits (RCs): 10 for continued field activity and 30 for professional development within the term, with attestation and retained evidence in case of audit, and a current photo requested. Other ACAC materials describe the requirement differently (the handbook gives a general 40 RCs and a program page cites 20 professional-development hours annually), so confirm the version that applies to you. Renewal costs $400. Start logging credits in year one; scrambling in month 22 is how renewals lapse. For the payoff side of the equation, see Is the CIES Certification Worth It? Complete ROI Analysis 2026 and, for earnings context, CIES Salary Guide 2026: Complete Earnings Analysis; note that no reliable CIES-specific earnings premium has been verified.
Key Takeaway
Your CIES "exam date" is the product of your own preparation of project sheets, a board that meets every four to six weeks, and an application window of either 90 days or six months. Resolve the window question with ACAC first, then work backward.
Frequently Asked Questions
No fixed 2026 sitting calendar was verified. Scheduling follows approval of your application, after which you book a proctored testing-center or online video slot. Confirm current options directly with ACAC.
ACAC's materials conflict. The online application page says six months including the exam, while the handbook says 90 days. Plan around the shorter window and request written confirmation from ACAC.
The current ACAC page says the board meets every four to six weeks and requires unanimous approval. A complete file submitted early gives you the best chance of fitting into an upcoming meeting.
Yes. Online video proctoring is available alongside testing centers. You need your own computer, an approved webcam, a private location and at least 2 Mbps upload and download. Phones and tablets are not allowed.
A retake costs $100. Because your application window may include the exam, a failed attempt can use up remaining time, so avoid scheduling your first attempt at the very end of the window.
For a compact review as your date approaches, the CIES Cheat Sheet 2026: One-Page Review of Must-Know Facts is a good last-week companion, and you can keep drilling with the CIES practice test questions right up to exam day.