Last updated May 6, 2026. Official sources checked: NCCER Core craft catalog, NCCER Core Level Test news brief, Core 6e Level Test Specification Sheet, NCCER Core curriculum PDF, and NCCER Core Credly badge.
The Short Answer
NCCER Core: Introduction to Basic Construction Skills is the entry foundation for construction craft training. It covers safety, construction math, hand tools, power tools, construction drawings, communication, employability, material handling, and, depending on program structure, basic rigging. For many trainees, Core is the first credential on the path to electrical, plumbing, HVACR, carpentry, welding, pipefitting, heavy equipment, or another NCCER craft.
NCCER's Core 6th Edition Level Test specification sheet lists a 3-hour closed-book exam, a basic-function calculator only, 89 total items, and a minimum passing score of 70. It also says no extra papers, books, notes, or study materials are allowed. NCCER's Core Level Test news brief says the level test must be passed with an overall score of 70 or above and cannot be retaken by section.
NCCER Core Snapshot
| Item | 2026 detail |
|---|---|
| Program | NCCER Core: Introduction to Basic Construction Skills |
| Purpose | Entry-level construction foundation and pre-apprenticeship/craft-training base |
| Current curriculum | Core 6th Edition, revised 2021 |
| Level test | Core Level Test through NCCER's online Testing System |
| Format | Closed-book knowledge assessment |
| Time limit | 3 hours |
| Items | 89 on the Core 6e Level Test spec sheet |
| Passing score | Minimum score of 70 |
| Calculator | Basic-function, non-printing calculator; NCCER Testing System includes one |
| Materials | No books, notes, extra papers, or study materials allowed |
| Credentialing | Successful level test plus corresponding performance profiles can appear in the NCCER account/registry process |
Official Module Breakdown
NCCER's 2024 Core 6e Level Test spec sheet gives the clearest item map:
| Module | Items | Performance profile? | What to study |
|---|---|---|---|
| 00101 Basic Safety | 13 | Yes | PPE, hazard recognition, OSHA construction hazards, fire safety, LOTO, SDS/GHS, emergency procedures |
| 00102 Introduction to Construction Math | 19 | Yes | Fractions, decimals, feet/inches, area, volume, slope, ratios, Pythagorean theorem, material estimates |
| 00103 Introduction to Hand Tools | 13 | Yes | Tool identification, selection, inspection, safe use, maintenance, storage |
| 00104 Introduction to Power Tools | 10 | Yes | Drills, saws, grinders, pneumatic tools, guards, cords, batteries, safe operation |
| 00105 Introduction to Construction Drawings | 11 | Yes | Plans, elevations, sections, details, scales, dimensions, lines, symbols, specs |
| 00107 Basic Communication Skills | 9 | Yes | Listening, speaking, written communication, workplace information, clarity |
| 00108 Basic Employability Skills | 8 | No | Attendance, professionalism, teamwork, conflict resolution, employer expectations |
| 00109 Introduction to Material Handling | 6 | Yes | Lifting, stacking, transport, PPE, manual and mechanical handling safety |
Basic rigging is part of the broader Core curriculum and appears in many training programs, but the Core 6e Level Test spec sheet item list above does not show a separate 00106 rigging item count. Study it if your provider includes module testing, performance profiles, or local curriculum requirements.
What To Study First
1. Construction math
Math has the largest item count. Be automatic with feet-to-inches, fractions, decimals, area, volume, board feet-style thinking, slope, ratios, and the 3-4-5 triangle. A worker who can identify tools but cannot calculate length, square footage, or volume will struggle in every craft level after Core.
2. Basic safety
Know OSHA construction basics, fall protection, struck-by/caught-in/electrocution hazards, PPE, hazard communication, SDS sections, GHS pictograms, fire extinguisher classes, lockout/tagout purpose, ladder safety, housekeeping, and incident reporting. Safety questions are often direct, but they punish guessing between similar hazards.
3. Drawings and tools
For drawings, focus on what each drawing type is used for, how scales work, line types, dimensions, symbols, abbreviations, and specifications. For tools, learn the safe purpose and inspection rule, not just the name. Many questions ask what tool is appropriate or what unsafe condition requires stopping work.
4. Communication, employability, material handling, and rigging
These modules are smaller but easy points if you take them seriously. Study professional behavior, clear written and verbal communication, chain of command, conflict resolution, lifting technique, material storage, hand signals, sling and hitch basics, and when to ask a qualified person.
14-Day NCCER Core Study Plan
Days 1-3: Safety. Review PPE, Focus Four-style hazards, SDS/GHS, fire classes, LOTO, ladders, housekeeping, and emergency procedures. Do 40 safety questions.
Days 4-6: Math. Work conversions and calculations by hand: feet/inches, fractions, decimals, area, volume, triangles, and estimates. Do not use a calculator until you know the setup.
Days 7-8: Hand and power tools. Identify tools visually, then write the safe-use rule for each. Include guards, cords, blades, bits, wheels, batteries, compressed air, inspection, and storage.
Days 9-10: Construction drawings. Practice reading a small plan set or sample drawings. Identify plan, elevation, section, detail, scale, dimension line, hidden line, centerline, and specification references.
Days 11-12: Communication, employability, material handling, rigging. Review workplace expectations, listening, written instructions, lifting, stacking, transport, and basic rigging exposure.
Days 13-14: Mixed timed practice. Take an 89-question simulation or two shorter mixed sets. Remediate by module, not by overall score. You want 80%+ in practice to protect against test-day misses.
Mistakes That Cost Points
- Relying on memory of jobsite experience instead of NCCER vocabulary and module objectives.
- Skipping construction math because the calculator is allowed. The calculator does not choose the formula or units.
- Confusing general-industry rules with construction rules, especially fall-protection heights.
- Memorizing tool names without knowing inspection and safety requirements.
- Treating communication and employability as common sense and losing easy points.
- Assuming a low score in one section can be retaken alone. NCCER's Core Level Test brief says the full test must be repeated if the overall score is below 70.
Official Links
- NCCER Core craft catalog
- Core Level Test now available
- Core 6e Level Test specification sheet
- NCCER Core curriculum PDF
- NCCER credential verification
- OSHA construction standards, 29 CFR 1926
Buy on Amazon