What It Is and Why It Matters

The ACI Concrete Flatwork Finisher and Technician certification verifies skills in placing, consolidating, finishing, edging, jointing, curing, and protecting concrete flatwork. It matters for job requirements on construction sites, demonstrating competence for slabs on grade in residential, commercial, and industrial projects.

Prerequisites and Eligibility

No age or prior training prerequisites listed. For Finisher & Technician: pass written exam plus either 1 year (1500 hours) work experience and performance exam, or 3 years (4500 hours) experience with Alternative Performance Affidavit (Form D16). Work must cover full flatwork process, verified by employers. Concrete Flatwork Technician requires only written exam pass; upgrade later with experience.

Step-by-Step Process

  • Study resources: ACI Concrete Craftsman Series CCS-1 (Slabs on Grade), SP-1 Concrete Primer.
  • Pass 2-hour closed-book written exam (50 multiple-choice questions, 70% pass).
  • For full certification: submit employer-verified experience (1500 or 4500 hours) and either complete performance exam (pour and finish slab, evaluated on techniques) or Form D16 affidavit.
  • Apply through ACI-approved sponsors for exams.

ACI Certification Programs

Costs

Exam fees vary by sponsor; typically $200-$500 for written and performance combined (check local groups). No fixed ranges in sources; renewal exam ~$100-$300. Training optional via ACI sponsors.

State Differences

No state-specific licensing found; ACI is voluntary national certification. Some states or projects may require it via contract. No reciprocity or unique state rules noted; check local boards.

Renewal Requirements

Valid 5 years. Recertify with written exam pass, or 10 hours continuing education plus 4500 hours work experience. Submit payment form.

Where to Apply

Register via ACI website or 135+ sponsoring groups (e.g., ACI Pittsburgh: ACI Pittsburgh). Find testers: ACI Programs List. Performance exams at approved sites.

Typical Timeline

Prep: 1-3 months study. Written exam scheduling: 1-4 weeks. Performance/experience verification: 1-2 months. Total: 3-6 months with 1500 hours experience; longer for 4500 hours path.