ATT2 logo
Focused certification exam prep
Start practice

ATT2 Salary Guide 2026: Complete Earnings Analysis

TL;DR
  • ATT2 requires an active ACI Aggregate Testing Technician - Level 1 credential before you can even sit the exam.
  • Local ATT2 packages run roughly USD 500-928 depending on chapter and membership status, per 2026 published fee sheets.
  • Certification lasts five years, and recertification means passing both the written and performance exams again.
  • Value comes from covering seven hands-on practical standards plus three written-only standards - not from a number on a paystub.

What ATT2 Actually Signals to Employers

Before talking about earnings, it's worth being precise about what the ATT2 credential actually represents - because that precision is exactly what determines how much weight it carries with a hiring manager or a client on a bid sheet. Aggregate Testing Technician - Level 2 is an American Concrete Institute (ACI) certification. It is not a generic industry title; it is a documented, standards-based qualification built on ACI's Job-Task Analysis approved September 30, 2024, and administered under CPP 620.3-20. That distinction matters when you're trying to understand earning potential, because ATT2 doesn't function like a broad professional license - it functions as proof that you can independently run and interpret ten specific aggregate testing standards.

This article won't manufacture salary figures or invented percentages - no credible public dataset exists that isolates ATT2-specific compensation, and inventing numbers would do you a disservice. What we can do is walk through exactly what the credential requires, what it costs to obtain and maintain, and how those facts translate into real hiring leverage. For the deeper mechanics of the exam itself, the ATT2 Study Guide 2026 and the ATT2 Exam Domains 2026 guide are useful companions to this analysis.

Why This Matters: ATT2 sits on top of Aggregate Testing Technician - Level 1. You cannot register for Level 2 without holding a current Level 1 credential, which means every ATT2 holder already has a documented testing background before adding the ten Level 2 domains.

Who Hires ATT2-Certified Technicians

Aggregate testing sits at the intersection of quality control and materials engineering, which means ATT2 holders typically work for organizations that cannot afford to guess about aggregate quality: ready-mix concrete producers, aggregate and quarry operations, materials testing laboratories, department-of-transportation-adjacent contractors, and construction materials engineering firms. These employers need someone who can run bulk density and voids testing, soundness testing, and particle-shape analysis correctly and defensibly - because the results feed directly into mix design decisions and specification compliance.

The practical exam component is the detail that separates ATT2 from a purely academic credential. Seven of the ten standard areas require hands-on demonstration or verbal walkthrough of prescribed procedure steps during a closed-book performance examination. That means an ATT2 holder isn't just someone who memorized multiple-choice answers - they've been observed executing the procedures. For employers staffing a lab or a field crew, that's the exact signal they're looking for when deciding who gets assigned to higher-responsibility testing work.

Key Takeaway

If your target employer runs coarse aggregate quality programs - DOT-adjacent contractors, quarries, or ready-mix producers - ATT2's combination of written and performance testing is precisely the proof point they screen for. Review the ATT2 jobs landscape to see how this maps to real postings.

The Investment Side: What ATT2 Actually Costs

Earning potential only makes sense in context of what you put in. ACI does not publish a single national exam fee - certification is delivered through ACI-approved sponsoring groups and examiners, and pricing varies by chapter. Two published 2026 local examples illustrate the range:

Sponsoring GroupMember PriceNonmember PriceWhat's Included
ACI Intermountain Chapter (Utah)USD 500USD 600Study guide, review session, written exam, performance exam
CRMCA (Denver, CDOT HQ)USD 598USD 928Full written + performance exam only; workbooks separate; no exam-day training or review; 3.05% card-processing fee applies

Notice the packages are structurally different - Intermountain bundles study materials and review into its price, while CRMCA's fee covers only the examinations themselves, with the CP-45 workbook purchased separately. That workbook, ACI's seventh-edition CP-45, runs USD 133 at regular price or USD 69 for ACI members. Before budgeting, read the full ATT2 Certification Cost breakdown so you're comparing apples to apples across sponsoring groups.

Fee Mechanics to Watch: Both the written and performance components must be passed within one year of each other. A failed component must be retaken in full, but a passed component stays valid within that window - so a partial retake doesn't reset your entire investment.

How the Ten Domains Translate into On-the-Job Value

The reason ATT2 carries weight with employers is that its ten domains map directly onto testing tasks that show up in real lab and field work - not abstract theory. The written exam contains roughly 100 multiple-choice questions, with eight to 12 questions drawn from each of the ten standards, and it's open-book using ACI-approved references. Seven of those ten areas also require practical demonstration:

Written-Exam-Only Standards

Three standards are tested only on the written exam, not the performance component:

  • AASHTO T 96/ASTM C131 - Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact (LA Machine)
  • AASHTO T 104/ASTM C88 - Soundness of Aggregate by Sodium or Magnesium Sulfate
  • ASTM C535 - Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact

Seven Practical (Written + Performance) Standard Areas

  • AASHTO T 19/ASTM C29/C29M - Bulk Density ("Unit Weight") and Voids in Aggregate
  • AASHTO T 112/ASTM C142 - Clay Lumps and Friable Particles in Aggregate
  • AASHTO T 113/ASTM C123 - Lightweight Pieces in Aggregate
  • AASHTO T 176/ASTM D2419 - Sand Equivalent Test for Plastic Fines
  • AASHTO T 304/ASTM C1252 - Uncompacted Void Content of Fine Aggregate
  • ASTM D4791 - Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
  • ASTM D5821 - Percentage of Fractured Particles in Coarse Aggregate

From an earnings-leverage standpoint, the practical standards matter most for day-to-day lab assignments - they're the tasks a supervisor watches you perform. ASTM D4791 and ASTM D5821 in particular come up constantly in aggregate acceptance testing for pavement and concrete mixes, which is why employers running active QC programs specifically ask about ATT2 rather than assuming Level 1 coverage is enough. A full breakdown of how to sequence study across all ten areas is in the ATT2 Exam Domains guide, and the passing thresholds for each are detailed in the ATT2 Passing Score guide.

Certification vs. Compensation: Reading the Signals Honestly

It's tempting to look for a hard number here, but the honest answer is that no verified national salary dataset isolates ATT2 compensation specifically, and any figure you see claiming otherwise should be treated skeptically - it likely belongs to a different credential entirely. What can be said with confidence is qualitative and grounded in the certification's structure itself:

  • ATT2 requires an active Level 1 credential first, so holders already have a documented testing track record before adding Level 2 - which typically positions them for more senior lab or field assignments rather than entry-level ones.
  • The five-year certification cycle with mandatory re-examination (both written and performance) means employers can trust that an active ATT2 credential reflects current competency, not a certificate earned years ago and never revisited.
  • Because the credential covers coarse aggregate degradation, soundness, particle shape, and fine aggregate void content in one package, ATT2 holders can often be assigned across more of an aggregate QC program than someone certified in a narrower scope - which affects role scope and responsibility, if not a guaranteed dollar figure.

For a fuller ROI framework that weighs the certification's cost against the qualitative career benefits above, see Is the ATT2 Certification Worth It?. It's the right companion piece if you're trying to decide whether the investment fits your specific career stage.

Key Takeaway

Treat ATT2 as a scope-of-responsibility credential rather than a guaranteed pay bump. Its real value shows up in which testing assignments you're trusted with, not a fixed number on an offer letter.

From Level 1 to Level 2: The Career Trajectory

Because Level 1 certification is a hard prerequisite for Level 2, the earnings conversation for ATT2 is really a two-step story. Technicians typically start with basic field and lab testing responsibilities under Level 1, then use ATT2 to expand into the more specialized standards - degradation resistance, soundness, particle shape and fracture counts, and fine aggregate voids - that quality programs depend on for specification compliance. If you're still mapping out whether you meet the prerequisite chain, the ATT2 Requirements guide walks through exactly what's needed before you can register.

This layered structure is intentional. ACI designed the Level 1-to-Level 2 pathway so that employers can trust a progression: a Level 2 holder has already proven baseline competency and has now added a defined, tested set of advanced skills. That's a cleaner signal for promotion or rate discussions than a single undifferentiated "aggregate tech" title.

Recertification and Protecting Long-Term Value

ATT2 certification lasts five years, and recertification isn't a rubber stamp - it requires passing both the written and performance examinations again. That's a meaningful detail for anyone weighing the credential's long-term value: it means an active ATT2 credential is never more than five years stale, and it also means your investment doesn't end at the first pass. Budgeting for recertification fees and refresher study time should be part of any realistic long-term view of the certification's cost-to-value ratio.

This is also why staying current on the standards themselves matters more than cramming once. The ten study domains are tied to ACI's 2024 Job-Task Analysis, so referencing the most current CP-45 seventh-edition workbook - rather than older materials - keeps your knowledge aligned with what's actually tested, both the first time and at recertification.

Plan Ahead: Because both exam components must be passed within one year of each other, and recertification repeats the full process, treat your first ATT2 attempt as the template you'll reuse every five years - get your study system right once.

Building a Study Plan That Protects Your Investment

Given the fees involved - several hundred dollars depending on your sponsoring chapter - a failed attempt isn't just a scheduling setback, it's a direct cost. A short, ATT2-specific study sequence helps protect that investment rather than relying on generic exam-prep habits.

Week 1

Written-Only Standards

  • Master AASHTO T 96/ASTM C131, AASHTO T 104/ASTM C88, and ASTM C535 since these appear only on the multiple-choice exam and reward memorization of procedure specifics and acceptance criteria.
Weeks 2-3

Practical Standards, One at a Time

  • Work through the seven practical domains - T 19/C29, T 112/C142, T 113/C123, T 176/D2419, T 304/C1252, D4791, and D5821 - practicing both the written questions and the physical or verbal procedure steps together.
Week 4

Mixed Review and Threshold Check

  • Run full-length practice sets to confirm you're clearing 60% on every individual standard and 70% overall before test day, since ACI requires both thresholds simultaneously.

For structured practice questions built around this exact domain breakdown, our ATT2 practice test platform lets you drill each standard individually before combining them into full simulated exams. Pair that with the ATT2 Cheat Sheet for quick pre-exam review, and check How Hard Is the ATT2 Exam? if you're trying to gauge realistic prep time.

FAQ

Does ACI publish a national ATT2 salary figure?

No. ACI publishes certification requirements and policies, not compensation data. Salary depends on your employer, region, experience, and role - treat any specific number you see elsewhere with caution unless it's sourced to verified ATT2-specific data.

Do I need Level 1 before pursuing ATT2 for career advancement?

Yes. A current ACI Aggregate Testing Technician - Level 1 credential is a hard prerequisite for ATT2 registration, so your earning trajectory typically runs through Level 1 first.

How much should I budget for ATT2 certification in 2026?

Published local examples range from USD 500 (Intermountain Chapter, members) to USD 928 (CRMCA, nonmembers), plus a standalone CP-45 workbook at USD 69-133 if not bundled. Check your specific sponsoring group's price sheet, since ACI does not set one national fee.

How often do I need to recertify, and does that affect long-term value?

ATT2 certification lasts five years. Recertification requires passing both the written and performance examinations again in full, so ongoing value depends on staying current with the standards, not a one-time pass.

Which domains matter most for hiring managers specifically?

The seven practical standards - including ASTM D4791 and ASTM D5821 for particle shape and fracture - tend to matter most for day-to-day assignments, since they're demonstrated live during the performance exam and reflect hands-on lab competency.

Ready to pass your ATT2 exam?

Put this into practice with free ATT2 questions across every exam domain.