- The comprehensive exam is 400 items, 150 minutes, with a 75% passing score.
- ADDA also allows modular completion via Parts A and B within a combined 2.5-hour limit.
- Full-exam fees are USD 125 member, USD 155 non-member, USD 115 Certified Program.
- Certification lasts 3 years and renews via employment plus 30 hours, or 100 hours alone.
What the CD Credential Actually Covers
The Architectural Certified Drafter (CD) credential is administered by the American Design Drafting Association/American Digital Design Association (ADDA International). It confirms that a drafter can read, interpret, and produce architectural drawings across the full lifecycle of a residential or light-commercial project - from site plans to finish schedules. In review-guide labels, this discipline is sometimes shown as ACD to distinguish it from ADDA's other drafting disciplines.
If you're still sorting out terminology before diving into study material, the companion pages What Is CD?, CD Meaning, and What Does CD Stand For? walk through the naming conventions in more depth. This cheat sheet assumes you already know you're pursuing the architectural CD specifically and just want the essential facts condensed onto one page.
Exam Format at a Glance
The Architectural CD exam is delivered online through an ADDA-approved proctor or testing site - there's no paper-based option. Two format details matter most for your planning:
- Comprehensive exam: 400 test items, 150 minutes, 75% passing score (per Virginia's official CTE credential record for this examination).
- Modular option: ADDA also structures the content as Part A and Part B, with a combined 2.5-hour time limit and a proctor-permitted break. Candidates can complete modules separately rather than sitting the full comprehensive exam in one session.
Because the modular path changes your time budget and pacing strategy, don't assume the 400-item, 150-minute figures apply to a single module - those numbers describe the comprehensive exam only. For a full breakdown of scoring mechanics, see CD Passing Score 2026: Exactly What You Need to Pass, and for scheduling logistics, check CD Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Decide early whether you're sitting the comprehensive exam or splitting it into Parts A and B - your pacing, break strategy, and review schedule differ depending on which path you choose.
The 17 Architectural CD Domains
Every question on the exam traces back to the competency areas defined in ADDA's January 8, 2014 competency document. These 17 domains are the backbone of your review - memorize the list, then map your study hours against it.
Domain 1: Abbreviations - Terms - Identification
Standard architectural abbreviations and terminology used across drawing sets.
- Recognize symbol and label shorthand quickly under time pressure
Domain 2: Drafting Processes - Communication
How drawing sets are organized, revised, and communicated between trades.
- Sheet numbering, revision clouds, and drawing coordination
Domain 3: Details - Notations
Reading and producing detail callouts and construction notes.
- Section references and detail bubble conventions
Domain 4: Site Drawings and Topography
Site plans, grading, and topographic representation basics.
- Contour lines, setbacks, and site orientation
Domain 5: Floor Plans and Layouts
Interpreting and producing floor plans for residential/commercial layouts.
- Wall types, dimensioning conventions, room labeling
Domain 6: Exterior Views - Elevations
Reading elevation drawings and exterior massing.
- Matching elevations to floor plan features
Domain 7: Building Materials
Common material call-outs and their graphic representation.
- Material hatching and specification notes
Domain 8: Roofs and Roof Plans
Roof plan geometry, pitch notation, and drainage.
- Ridge, hip, and valley identification
Domain 9: Building Codes & ADA Codes
Code-driven design constraints and accessibility requirements.
- Egress, clearances, and accessibility dimensions
Domain 10: General Building Systems
How structural and mechanical systems appear across drawing sets.
- Cross-referencing systems between plan sheets
Domain 11: Stairs and Steps
Stair geometry, riser/tread notation, and code minimums.
- Calculating rise-and-run relationships
Domain 12: Electrical
Electrical plan symbols and basic layout logic.
- Outlet, switch, and panel symbol recognition
Domain 13: HVAC
Mechanical plan symbols and system representation.
- Ductwork and equipment callouts
Domain 14: Schedules
Door, window, and finish schedules tied to plan drawings.
- Cross-referencing schedule tags to plan callouts
Domain 15: Plumbing
Plumbing plan symbols and fixture layout basics.
- Fixture symbol identification
Domain 16: Geometry - Lines - Math
Drafting geometry, line types, and math used in layouts.
- Scale conversions and line-type conventions
Domain 17: Foundations
Foundation plan reading and basic footing/wall conventions.
- Foundation plan symbol and dimension recognition
For a deeper walk-through of each area with sample question styles, see CD Exam Domains 2026: Complete Guide to All 17 Content Areas. If you're unsure how difficult these domains feel in practice compared with your current drafting experience, How Hard Is the CD Exam? Complete Difficulty Guide 2026 breaks that down further.
Fees and Registration Mechanics
The Architectural CD is registered and delivered as an online exam through an ADDA-approved proctor or testing site - you cannot walk into a random testing center; the proctor must be ADDA-approved. Per the currently linked application, full-exam fees are:
- USD 125 - ADDA member rate
- USD 155 - non-member rate
- USD 115 - Certified Program rate
These figures apply to the full exam registration, not to renewal (covered below) or to any other drafting discipline ADDA offers. For the complete cost picture, including how renewal pricing compares, see CD Certification Cost 2026: Complete Pricing Breakdown.
Recommended Preparation Path
ADDA doesn't mandate a specific training program before you sit the exam, but it does recommend a preparation baseline: either 2 years of on-the-job training or 800-1,200 contact hours of discipline-specific education. Candidates coming from a drafting associate's program or an equivalent CAD/architectural curriculum typically land inside that hour range; candidates coming from pure job experience count toward the 2-year benchmark instead.
Neither path is a hard prerequisite enforced at registration - they're recommendations describing the skill level the exam assumes. If you're weighing which path fits your background, CD Requirements 2026: Eligibility, Prerequisites & How to Qualify covers eligibility in more detail, and CD Training outlines how candidates typically accumulate the recommended hours.
Key Takeaway
If you can't document 2 years of on-the-job architectural drafting, tally your formal coursework hours instead - 800 to 1,200 hours of discipline-specific education is the alternative benchmark ADDA recommends.
Renewal: What Keeps Your CD Active
Certification lasts 3 years. To renew, you need one of two paths:
- Professional employment for 2 of the 3 years, plus 30 related training contact hours, or
- 100 related training contact hours when the employment criterion can't be met.
ADDA defines 1 CEU as equal to 1 contact hour for this requirement, so tracking CEUs is straightforward - one CEU credit, one hour toward your 30 or 100. Standard renewal costs the same as the examination fee tier you'd otherwise pay, but qualifying Select, Elite, or members with at least 3 years of continuous annual membership get a reduced USD 45 renewal rate.
Plan renewal documentation early - waiting until year 3 to reconstruct contact hours or employment records is harder than logging them as you go.
A One-Week Cheat-Sheet Review Plan
This is a condensed final-review week, not a full study program - pair it with a longer plan like CD Study Guide 2026: How to Pass on Your First Attempt if you're starting from scratch. The idea is to sequence domains by how often candidates report them as weak points, saving the calculation-heavy ones for when you're mentally freshest.
Codes, Systems, and Terminology
- Domain 9 (Building Codes & ADA Codes)
- Domain 1 (Abbreviations - Terms - Identification)
- Domain 2 (Drafting Processes - Communication)
Plan Reading Across Disciplines
- Domain 5 (Floor Plans and Layouts)
- Domain 6 (Exterior Views - Elevations)
- Domain 8 (Roofs and Roof Plans)
- Domain 4 (Site Drawings and Topography)
MEP and Schedules
- Domain 12 (Electrical)
- Domain 13 (HVAC)
- Domain 15 (Plumbing)
- Domain 14 (Schedules)
Math-Heavy and Structural Wrap-Up
- Domain 16 (Geometry - Lines - Math)
- Domain 11 (Stairs and Steps)
- Domain 17 (Foundations)
- Domain 3, Domain 7, Domain 10 quick review
Run timed practice questions on the practice test platform throughout the week rather than saving them all for the final day - spacing out timed reps against the 150-minute comprehensive format helps you calibrate pacing before exam day.
Quick Reference Table
| Item | Figure |
|---|---|
| Comprehensive exam length | 400 items, 150 minutes |
| Passing score | 75% |
| Modular format (Parts A & B) | Combined 2.5-hour limit, proctor-permitted break |
| Full exam fee - member | USD 125 |
| Full exam fee - non-member | USD 155 |
| Full exam fee - Certified Program | USD 115 |
| Certification validity | 3 years |
| Renewal (employment path) | 2 years employment + 30 contact hours |
| Renewal (hours-only path) | 100 contact hours |
| Discounted renewal rate | USD 45 (Select/Elite/3+ year continuous members) |
| Domains | 17 (see competency document dated Jan 8, 2014) |
For historical context on how candidates have performed against this scoring bar, see CD Pass Rate 2026: What the Data Shows. And if you're still deciding whether the investment of time and fees is worthwhile for your career goals, Is the CD Certification Worth It? Complete ROI Analysis 2026 and CD Salary Guide 2026: Complete Earnings Analysis cover that angle, while CD Jobs looks at where the credential shows up in hiring.
FAQ
Online only. It's delivered through an ADDA-approved proctor or testing site - there is no paper-based version of this exam.
Yes. ADDA offers modular completion via Parts A and B, with a combined 2.5-hour time limit and a proctor-permitted break, as an alternative to sitting the full 400-item comprehensive exam in one 150-minute sitting.
Per the currently linked application, the full exam costs USD 125 for members, USD 155 for non-members, and USD 115 for those in the Certified Program - the Certified Program rate is actually the lowest of the three.
Seventeen, ranging from Abbreviations - Terms - Identification through Foundations, as defined in ADDA's January 8, 2014 competency document.
You can renew by completing 100 related training contact hours instead of the employment-plus-30-hours path, since ADDA counts 1 CEU as equal to 1 contact hour toward that total.
Keep this page bookmarked as your one-stop reference in the final days before your exam, and revisit the CD Certification overview or What Is CD Certification? if you need to double-check any foundational detail before test day.