CDS Exam Dates 2026: Testing Windows, Deadlines & Scheduling

How the Certified Demolition Supervisor Testing Window Model Works

If you are searching for a single calendar date to circle, adjust your expectations. The Certified Demolition Supervisor (CDS) credential, offered by the National Demolition Association, is delivered in testing windows rather than as an on-demand, walk-in exam you can book for next Tuesday. Candidates register, receive eligibility approval, and then sit for the exam within a defined window through Meazure Learning, either by live remote proctoring or at a test center.

That structure shapes everything about how you plan. Because results are released only after a window closes, and because you cannot use two attempts inside the same window, your scheduling decisions carry more weight than they would for a continuous-testing exam. A missed deadline can push your attempt by an entire window, which for working demolition supervisors means months of delay.

This article walks through what is known about the CDS scheduling structure, what you should verify directly with the NDA before committing, and how to build a preparation calendar that works backward from your chosen window. For the broader picture of the credential itself, see our overview of what CDS certification is.

What Is Confirmed and What You Must Verify

Honest scheduling guidance starts by separating verified facts from open questions. Here is where things stand for the Certified Demolition Supervisor exam.

The same caution applies to the passing standard. The exam uses a criterion-referenced scaled standard, and a numerical cut score has not been publicly verified. Our page on the CDS passing score explains what that means for how you prepare.

Eligibility Paperwork Comes Before the Calendar

The most common scheduling mistake is treating eligibility as an afterthought. For the CDS, the credential requires documented experience and training, and gathering that proof can take longer than candidates expect. The baseline requirements include:

• Five hands-on demolition years within the last seven years
• Eight-hour fall-protection or fall-prevention training
• OSHA 30 certification
• Eight-hour asbestos or HAZWOPER awareness training
• Current CPR and First Aid certification

Application documentation requirements can change, so confirm the current list with the NDA. The practical scheduling implication is that a certificate you do not yet hold can disqualify you from a window you were aiming for. If your CPR card is expiring or you have never completed the asbestos/HAZWOPER awareness course, book those first and treat them as hard prerequisites on your timeline.

For a full breakdown of who qualifies and how to document it, read our guide to CDS requirements and eligibility.

Fees and Registration Mechanics

Because you register for a specific window, understanding the fee structure up front helps you decide whether to rush into the next window or wait for a better-prepared attempt. The verified fee structure is:

The gap between member and non-member pricing is $160, so if you were already considering NDA membership, price the two paths together before you register. Our CDS certification cost breakdown covers the full picture, including the costs around the exam fee itself.

What You Are Scheduling: Format and Delivery

Choosing between live remote proctoring and a test center is part of the scheduling decision. Both routes run through Meazure Learning. The exam itself is the same: 110 four-option multiple-choice questions in 2 hours 30 minutes. That works out to a little over a minute per question, which is tight enough that pacing matters, especially on the scenario-style items common in field-operations credentials.

Remote proctoring versus test center

• Remote proctoring: convenient for supervisors working in the field, but you need a quiet, compliant room, a working webcam and a stable connection. A demolition yard office or a truck cab will not qualify.
• Test center: removes the technology risk and the home-office compliance risk, at the cost of travel time, which matters if the nearest center is far from your project.

Whichever you choose, run any required system check well before exam day and read the candidate rules on permitted materials. Open-book and calculator permissions have not been verified, so do not assume either way. Find out in advance rather than discovering the rule at check-in.

The Three-Attempt Rule and Why Timing Matters

This is the scheduling rule that most deserves your attention. You have three attempts within one year of eligibility, and those attempts cannot occur within the same testing window. Further restrictions apply after three failures.

Combine that with the results lag and the implications are real. Because results come roughly six to eight weeks after the window closes, you generally will not know the outcome of one attempt before the next window's registration pressure arrives. That affects how you sequence attempts:

1. Do not treat attempt one as a diagnostic. With three attempts spread across windows inside a one-year eligibility period, wasting one on a "practice run" removes a third of your safety net.
2. Leave room in the one-year clock. If you take your first attempt late in your eligibility year, you may not have a realistic path to a second or third attempt.
3. Learn from the score report, not from guesswork. If you do not pass, use your feedback to rebuild your weakest domain before the next window.

For a sense of how demanding the exam is and how that should factor into your timing, see how hard the CDS exam is and what the available data says in our CDS pass rate analysis.

Results Timeline After the Window Closes

Official results arrive approximately six to eight weeks after the window closes. Note the phrasing: it is measured from the close of the window, not from the day you personally sat the exam. If you test on the first day of a long window, you still wait for the window to close and then for processing.

That has practical consequences for supervisors whose employers tie promotions, bid qualifications or project assignments to credentials:

• If a bid or job requires CDS status by a certain date, work backward from the results release, not from your exam date.
• Do not give an employer or client a firm credential date until results are official.
• If you plan to retake, remember that you may need to register for the next window before you know whether you passed the current one. Weigh the retake fee exposure accordingly.

If your motivation is career-related, it helps to understand what the credential can do for you. We cover that in our CDS certification ROI analysis, our CDS salary guide and our overview of CDS jobs.

Backward Planning by Domain

Once you pick a window, work backward and assign each content area a block of time proportional to its exam weight and to your own weaknesses. The posted outline, dated April 11, 2023, has five domains with approximate weights totaling 100%. Review the details in our complete CDS domains guide, then use the weights to decide where your calendar time goes.

Supervisors with decades of field time often feel strongest on Safety and Operational Methodology but weaker on the administrative and people-management domains, which reward knowledge of formal procedure over instinct. Be honest about which category you fall into, then shift hours accordingly. Our CDS study guide goes deeper on content, and the CDS cheat sheet is useful in the last few days. An official CDS study guide was also announced in 2026, so check the NDA site for availability.

The Three-Year Clock After You Pass

Scheduling does not end when you pass. The credential carries a three-year validity period with continuing-education renewal. The specific CEU total and renewal fee have not been verified, so confirm those directly with the NDA rather than relying on a third-party figure.

The practical advice is to start logging qualifying continuing education from day one rather than scrambling in year three. Put your expiration date in your calendar the day your credential is issued, along with a reminder well ahead of the deadline. Letting a credential lapse because of a missed renewal window wastes the effort and money you invested in earning it.

If you are still deciding whether this credential fits your career, our explainers on what the CDS is, CDS training options and the broader CDS certification overview provide useful context. You can also start building exam familiarity right now with the CDS practice questions on our main site.

Frequently Asked Questions