CIH · ABIH
Get your team certified for CIH. Audit-ready by default.
663 practice questions built from the official ABIH blueprint — weighted by domain, explained in depth, and tracked so your team knows exactly when they're ready to sit.
Blueprint-aligned to the American Board of Industrial Hygiene: Domain-level coverage with exposure-assessment weighting on page one. Self-explanation responses preserved verbatim.
Practice questions
180+
Matches the live-exam volume
Blueprint domains
3
Weighted to the published ABIH rubric
Pass threshold
70%
We certify ready at 70% calibrated mock
Blueprint-weighted
Every domain the ABIH blueprint tests.
Questions are distributed across the published weights — not evenly. Your team spends time where the exam actually grades.
What you get
A prep stack and a training-record stack.
Five things ship on day one. No add-on upsells, no stitching together screenshots when HR or procurement asks for the file.
Full question bank
All 180+ CIH practice questions unlocked per seat — free-response, calculation, and scenario items.
Blueprint-weighted practice
Questions served in the ABIH published weights across the 3 domains, so hours go where the exam actually grades.
Rationales on every answer
Plain-English rationale for both the correct answer and each distractor. Self-explanation prompts preserve the candidate's reasoning on missed items.
Team admin dashboard
One console: enrolment, study hours, mock history, domain mastery, calibration score. Know who is ready, who is stalled.
Per-employee training-record export
Signed PDF per employee per cert. ABIH Records Request Format v3 header band. The same dossier HR, procurement, and insurance reviewers ask for when they want evidence of EHS-program investment.
How our teams pass
Pass rates above the ABIH national average — once candidates clear the 70% calibration threshold.
We do not publish named customer stories. The honest pattern: candidates who clear 70% on at least two of their last three calibrated mock exams pass the live CIH at a rate above the official ABIH national average. Miss the calibration threshold and we do not certify them ready — the dashboard flags re-work domains, not fake green ticks.
No fabricated logos · No ghost-written testimonials · Calibration data visible to admins
Pricing for CIH
$149/seat/year for teams of 10+
Per-cert seats. Volume discount kicks in at 2 seats and again at 10. One-time purchase, 12-month access.
Small Team
2–9 seats$199/seat/year
Small EHS team consolidating cert prep. Admin dashboard included.
Start team planEnterprise
50+ seatsContact sales
Custom invoicing, SSO, DPA, volume pricing. 50+ seats only.
Request quote14-day money-back · 12-month pass guarantee · Secure checkout via Stripe
Three ways to see CIH in action.
Pick whichever gets you to a yes fastest.
Failing the CIH means another application cycle, another exam fee, and months of lost billing rate at the senior IH level you were about to step into.
Most CIH prep is a decade-old PDF or a $2,000 boot camp built around lectures — CertPrep gives you 663 blueprint-weighted questions with worked explanations you can drill on a lunch break and a dashboard that tells your team when a candidate is actually ready.
Common questions
- How closely does this question bank match the actual ABIH blueprint?
- Our 663 questions are weighted to the 2021 Job Analysis effective April 2022: roughly 50% Exposure Assessment, 35% Controls, and 15% Risk Management. Every item maps to a specific knowledge area in the published ABIH blueprint, so the time you spend here mirrors the time you'll spend on exam day.
- Is this enough to pass the CIH on its own?
- For most candidates with field experience, a question bank plus a reference text like Plog or the AIHA white book is enough. If you're newer to industrial hygiene or weak on the calculation-heavy Exposure Assessment domain, pair our bank with a math-focused review. The dashboard will show you which domains you're below the 70% threshold on before you book the seat.
- Can my company buy seats for a cohort of candidates?
- Yes. Team pricing is $59 per seat with a shared admin dashboard that tracks each candidate's domain-level readiness, time per question, and explanation review. EHS directors use it to decide who's ready to sit and who needs another month before the company pays the ABIH exam fee.