ALS Pass Rate 2026: What the Data Shows

Why There's No Official ALS Pass Rate to Quote

If you've searched for a specific pass-rate percentage for the Andrology Laboratory Scientist, ALS(AAB) credential, you've likely come up empty. The AAB Board of Registry (ABOR), which administers this certification, does not publish aggregate pass/fail statistics for candidates sitting the Basic Knowledge and Andrology examinations. That's a meaningful difference from some other lab-science credentials, where certifying bodies release annual pass-rate reports broken down by exam attempt or education pathway.

What this means practically: any number you see floating around claiming to be "the ALS pass rate" should be treated with skepticism unless it traces back to ABOR itself. Instead of chasing a phantom statistic, the more useful exercise - and the one this article focuses on - is understanding the structural factors that determine whether a candidate passes on the first attempt: exam format, scoring rules, and eligibility requirements. For a deeper look at how tough this exam actually feels from the candidate's chair, see How Hard Is the ALS Exam? Complete Difficulty Guide 2026.

The Two-Exam Hurdle That Shapes Every Outcome

Certification as ALS(AAB) is not a single test. Candidates must pass both the Basic Knowledge examination and the Andrology examination - two separate 70-question, 90-minute, multiple-choice exams. This dual-exam structure is the single biggest factor shaping outcomes, because it doubles the number of places where a candidate can fall short.

A crucial rule that trips people up: the Basic Knowledge examination must be taken at your first sitting. You cannot sit the Andrology exam first and circle back to Basic Knowledge later. This sequencing requirement means your initial exam-day strategy has to account for both tests from day one, not just the one you feel more confident about.

• No calculators are permitted on either exam.
• No outside notes or reference materials are allowed.
• Each exam is scored independently - a strong score on one does not offset a weak score on the other.

For a full breakdown of eligibility routes before you even get to exam day, review ALS Requirements 2026: Eligibility, Prerequisites & How to Qualify.

What Actually Determines Whether You Pass

ABOR requires a score of 60% on each examination - not a combined average. This is arguably the most important mechanical fact for understanding your odds. A candidate who scores 90% on the Andrology exam but 55% on Basic Knowledge does not pass. Both scores must independently clear the 60% threshold.

This scoring structure has a practical implication: candidates cannot "coast" on a stronger domain to compensate for a weaker one. If your clinical experience is heavily weighted toward semen analysis and andrology-specific procedures but your foundational laboratory science knowledge is thin, that imbalance will show up as a failed Basic Knowledge score even if your Andrology score is excellent.

The full mechanics of what constitutes a passing outcome - including how the two scores interact and what to do if you fall short on one but not the other - are covered in detail in ALS Passing Score 2026: Exactly What You Need to Pass.

Domain-by-Domain: Where Candidates Struggle

Because ABOR doesn't publish item-level or domain-level pass statistics, we can't tell you which domain has a "harder" pass rate. What we can do is look at what each domain actually demands, since that's the real driver of outcomes.

For a granular walkthrough of every topic within each domain, see ALS Exam Domains 2026: Complete Guide to All 2 Content Areas. If you want a condensed, single-page reference to review core facts across both domains right before test day, the ALS Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for that purpose.

Retake Costs and Why First-Attempt Success Matters

Because ABOR doesn't publish pass-rate data, the financial mechanics of retaking an exam are the clearest signal of why first-attempt preparation matters. Here's how the fee structure actually breaks down:

• $115 initial certification application fee
• $105 for the first discipline examination
• $65 for the second examination when taken the same day
• $35 for an AAB proctor

When both required exams are taken the same day with an AAB proctor, the total comes to $320. College or university proctor fees, when applicable, are billed separately. If you need to retake either exam later, you're paying exam fees again on top of any new proctor arrangement - money and scheduling time that a solid first attempt avoids entirely. A full cost breakdown, including how these fees stack up across scenarios, is available in ALS Certification Cost 2026: Complete Pricing Breakdown.

Provisional Status and What "Passing" Means for Trainees

Not every candidate completes their education and clinical training requirements on the same timeline. ABOR accounts for this with the ALS-P(AAB) provisional status: candidates who meet the education requirement before completing the required clinical laboratory training - either an approved training program or at least three months of full-time high-complexity andrology laboratory experience within the preceding 10 years - can hold provisional status while finishing that requirement.

This matters for how you think about "passing," because passing the written exams is only one half of the eligibility picture. You also need to satisfy one of the four education routes and the training/experience requirement before full certification is granted. Someone can technically pass both exams and still not hold full ALS(AAB) status if the training component isn't complete yet.

It's also worth noting that certification isn't a one-time event to "pass and forget." Certification renews annually for $115, with no continuing-education requirement from ABOR - but if you go three years without renewing, your certification file closes and you'd need to re-establish eligibility. For the complete picture of how eligibility, training, and renewal interact, see ALS Requirements 2026: Eligibility, Prerequisites & How to Qualify.

A Study Timeline Built Around the Two Domains

Generic study advice - spaced repetition, timed practice blocks, active recall - works, but only if it's mapped to the actual structure of the ALS(AAB) exams. Since Basic Knowledge must be taken at your first sitting and covers broader foundational material, it makes sense to build early momentum there before shifting focus to the more specialized Andrology content.

For a structured, week-by-week study plan with more detail than this overview, see ALS Study Guide 2026: How to Pass on Your First Attempt. And when you're ready to test your recall under realistic timed conditions, practicing on our ALS practice test platform is one of the most direct ways to simulate the 70-question, 90-minute format before exam day.

Basic Knowledge vs. Andrology Exam: Format Comparison

Notice that the two exams are structurally identical in format - same length, same time, same passing threshold. The difference is entirely in content. This is why treating them as one combined "ALS exam" in your prep planning is a mistake; each deserves its own study block, as outlined in ALS Exam Domains 2026: Complete Guide to All 2 Content Areas.

Who Actually Relies on This Credential - and Why Preparation Quality Matters

ALS(AAB) certification is sought by professionals working in high-complexity andrology laboratories, including those performing semen analysis, fertility testing support, and related reproductive laboratory procedures. Employers in this space - reference labs, fertility clinics, and hospital-affiliated andrology units - look to this credential as a marker that a candidate has demonstrated both foundational lab science competency and specialty andrology knowledge under ABOR's standardized testing conditions.

Because certification directly affects hiring eligibility and scope of responsibility in many labs, understanding what the credential signals - and whether pursuing it makes sense given your career stage - is worth evaluating honestly. See Is the ALS Certification Worth It? Complete ROI Analysis 2026 and ALS Salary Guide 2026: Complete Earnings Analysis for a broader view of how this credential fits into compensation and career trajectory. If you're still exploring whether this is the right credential path at all, start with What Is ALS Certification?.

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