- Which HBDP This Cheat Sheet Covers
- Exam Format at a Glance
- Scoring Math You Can Memorize
- The Seven Domains, Compressed
- Eligibility Routes in One Table
- Fees, Windows, and Retakes
- Standards and Guidelines Reading Map
- Conflicting Numbers You Will Run Into
- Renewal Rules for 2026
- A Domain-Ordered Review Schedule
- Quick Answers
- The exam has 115 questions in 2 hours 30 minutes; 100 are scored and 15 are unscored trial items.
- You need 70 correct out of 100 scored items to pass.
- Energy Analysis is the heaviest domain at 22%, followed by Indoor and Site Environment at 16%.
- Application fees are $495 member, $295 Developing Economies member, or $745 nonmember; ASHRAE membership is not required.
Which HBDP This Cheat Sheet Covers
This page covers one credential only: the High-Performance Building Design Professional (HBDP) certification governed by ASHRAE. The acronym is shared with other credentials elsewhere, so if you see fee tables, pass rates, or domain weights that do not match the numbers below, check whether the source is describing this ASHRAE credential. Facts here were verified against ASHRAE's candidate guidebook, committee minutes, and program pages as of October 2026.
Use this sheet as a final-week review or a scoping tool at the start of your prep. For deeper treatment of any block, the complete guide to all 7 HBDP content areas and the HBDP study guide go further. If you are still orienting yourself, What Is HBDP Certification? covers the basics.
Exam Format at a Glance
| Item | Must-Know Fact |
|---|---|
| Delivery | Proctored, computer-based, administered through Kryterion test centers with Webassessor scheduling |
| Question style | Single-best-answer multiple choice |
| Total items | 115 (100 scored, 15 unscored trial items interspersed) |
| Time allowed | 2 hours 30 minutes; breaks do not stop the timer |
| References | Closed book, closed notes |
| Calculator | Basic nonscientific, nongraphing calculator permitted |
| Scratch work | Test-center personnel provide scratch paper and a pencil |
| ID required | Two acceptable IDs, including government-issued photo ID whose name matches your registration, plus your examination authorization code |
| Extra time | Qualifying non-native English speakers get 30 additional minutes after self-attestation, declaring native language, and providing a professional reference who can confirm that status |
Two practical consequences follow. First, because you cannot tell which 15 items are unscored, treat every question as if it counts. Second, a nonscientific calculator means the exam is built around arithmetic and ratio reasoning, not long iterative calculations. Expect to compare, convert, and apply formulas that a basic calculator can handle.
Scoring Math You Can Memorize
The passing score is 70 correct out of 100 scored items. That figure is confirmed by the candidate guide, the Certification Committee's July 30, 2025 minutes (which adopted 70 for the beta cohort and subsequent candidates), and ASHRAE's certification FAQ. Put plainly, you can miss 30 scored items and still pass.
That gives you a useful planning frame. Because the domains are weighted, 30 misses are not evenly distributed. A candidate who is weak in Energy Analysis (22 scored items) has less room to be weak elsewhere than one who is weak in General Information (11 items). The exact breakdown of how the number was set is in the HBDP passing score guide.
What the pass statistic does and does not tell you
The latest verified published figure is 57% life-to-date through May 2025. It predates the updated outline, is not a 2026 annual figure, and is not a first-attempt-only rate. Treat it as a rough signal that the exam is demanding, not as a forecast of your own result. The HBDP pass rate analysis explains the caveats, and How Hard Is the HBDP Exam? translates them into prep decisions.
The Seven Domains, Compressed
The seven headings below are the official exam domains from Appendix A of the candidate guidebook. Their published weights total 100% of the 100 scored items. Weights translate to approximate scored-item counts, which is the most useful way to allocate study hours.
| Domain | Weight | Approx. Scored Items |
|---|---|---|
| 1. General Information | 11% | 11 |
| 2. Energy Analysis | 22% | 22 |
| 3. Indoor and Site Environment | 16% | 16 |
| 4. Controls and Monitoring | 15% | 15 |
| 5. Benchmarking with Performance Metrics | 13% | 13 |
| 6. Water Conservation | 11% | 11 |
| 7. Commissioning | 12% | 12 |
Domain 2: Energy Analysis (22%)
The largest block and the one that rewards quantitative fluency. Its Carbon Emissions Compliance subdomain has four scored items, so do not skip it just because it sounds like a policy topic.
- Expect energy modeling concepts, load and consumption reasoning, and compliance logic tied to standards such as ASHRAE 90.1
- Be ready to interpret how design choices change energy use and carbon outcomes
- Practice setting up simple calculations that a basic calculator can finish
Domain 3: Indoor and Site Environment (16%)
The second-largest block connects occupant outcomes to design decisions.
- Thermal comfort and ventilation fundamentals, which map to Standards 55 and 62.1
- Indoor environmental quality and site-level considerations that influence the building's performance
- Know how comfort, air quality, and energy goals trade off against one another
Domain 4: Controls and Monitoring (15%)
Think sequences of operation, sensors, and the data that proves a building is doing what the design intended.
- Control strategies and how they affect energy and comfort
- Monitoring and measurement concepts that support verification
- Guideline 36 is the natural reference for control sequence thinking
Domain 5: Benchmarking with Performance Metrics (13%)
This block is about comparing a building to something: itself over time, peers, or a target.
- Performance metrics and what each one actually measures
- Interpreting benchmark results and recognizing when a comparison is misleading
Domain 7: Commissioning (12%)
Commissioning ties design intent to as-built reality.
- Process stages and documentation that carry owner requirements through delivery
- Guideline 0 and Standard 202 are the core references to know
Domains 1 and 6: General Information (11%) and Water Conservation (11%)
Together they carry 22 scored items, equal to Energy Analysis on its own. They are often underprepared because they look easier, which makes them efficient places to protect points.
- General Information covers the framing concepts of high-performance design
- Water Conservation covers efficient water use in buildings and sites, with Standard 189.1 as a likely anchor reference
Eligibility Routes in One Table
There are four routes to qualify, and they differ only in credential level and years of building-system design experience. Applicants also accept the Code of Ethics and must pass the exam. No preparatory course, purchased publication, or fixed training-hour prerequisite is required.
| Route | Education or License | Experience |
|---|---|---|
| A | Government-recognized professional engineer or architect license | 4 years of building-system design |
| B | Accredited engineering or related bachelor's degree | 5 years |
| C | Accredited relevant associate/technical degree or certificate | 7 years |
| D | High-school completion or equivalent | 10 years |
The HBDP requirements guide walks through documenting experience for each route.
Fees, Windows, and Retakes
| Item | Member | Developing Economies Member | Nonmember |
|---|---|---|---|
| Application fee (includes exam) | $495 | $295 | $745 |
| First retake (after 3-month wait) | $220 | $130 | $285 |
- Membership: not required to apply.
- Scheduling window: approval gives you 90 days to schedule and sit.
- Extension: 45 days for $50, requested at least five business days before the window expires.
- Later retakes: after the first retake, you pay the full applicable application fee again.
- Groups: corporate groups receive a quote.
Standards and Guidelines Reading Map
ASHRAE's official resource page lists the standards and guidelines below. The list does not require purchase and does not establish a compulsory edition, so confirm which editions you will actually use against the current outline before you invest in copies. Because the exam is closed book, the goal is conceptual command of what each document governs, not memorized clause numbers.
| Reference | Where It Most Likely Helps |
|---|---|
| Standard 90.1 | Energy Analysis, compliance logic |
| Standard 189.1 | High-performance design broadly, including water and site topics |
| Standard 55 | Thermal comfort, Indoor and Site Environment |
| Standard 62.1 | Ventilation and indoor air quality |
| Standard 100 | Energy efficiency in existing buildings |
| Standard 105 | Energy use and performance metrics, benchmarking |
| Standard 209 | Energy simulation-aided design |
| Standard 211 | Commercial building energy audits |
| Standard 202 | Commissioning process |
| Guideline 0 | Commissioning process |
| Guideline 36 | Control sequences |
| Guideline 14 | Measurement of energy and demand savings |
Also on the official list are Standards 15, 147, and 228 and Guideline 32, along with ASHRAE Handbook volumes and related design and decarbonization guides. The mapping in the right-hand column is a study aid based on each document's general subject, not an official crosswalk to exam items.
Conflicting Numbers You Will Run Into
Search results for this exam are messy. Knowing why helps you avoid memorizing the wrong thing.
Seven domains versus eight areas
Two older standalone "Certification Examination Content Outline" PDFs on ASHRAE's site list eight top-level areas with different allocations, including an Energy and Materials Use and Management area. Neither supersedes the current seven-domain candidate guide. Some third-party course syllabi still reflect the legacy structure, so check any outside material against the seven domains above.
Version timeline
- Updated outlines were announced as effective June 1, 2025, with a June beta window.
- The July 30, 2025 committee minutes confirm the beta and adoption of 70 as the passing score.
- The January 31, 2026 minutes identify August 2025 as the new exam-form launch.
- A 2023 announcement forecast a first-quarter 2024 release; that was a forecast, not the actual launch.
- The candidate guide carries no overall publication date or exam-form code, and its Appendix B is marked Revised 3/2025. That is not a separately named 2026 edition.
Question counts and pass rates
The issuer's badge page describes 100 questions and an undated 59% pass rate, and a podcast transcript mentions 150 questions. Neither overrides the exam-specific guide: 115 total items and the dated 57% life-to-date statistic take precedence.
Renewal Rules for 2026
| Item | Rule |
|---|---|
| Cycle | Every three years; deadline is December 31 of the third year after certification (certified in 2026, renew by December 31, 2029) |
| Requirement | 45 relevant PDHs, ethics compliance, completed application, and payment |
| Project credit | Up to 21 PDHs from qualifying high-performance building design projects |
| Continuing education share | Beginning in 2026, at least 50% of required PDHs must be continuing education |
| Teaching credit | 3 PDHs per hour for the first presentation, 1 per hour for each of the next two equivalent presentations, capped at 15 PDHs per cycle |
| Renewal fee | $245 member, $145 Developing Economies member, $375 nonmember |
| Grace period (Jan 1-Mar 31) | $375 member, $225 Developing Economies member, $495 nonmember |
PDHs earned after expiration cannot be applied to the previous cycle, so late learning does not rescue a lapsed certification. The current HBDP page's 2026 teaching-credit rules supersede the older wording in Appendix B, and the exact current program-page prices supersede the lower renewal figures in the general FAQ.
Key Takeaway
Start logging PDHs the year you certify. With at least half required as continuing education and project credit capped at 21, a three-year cycle goes more smoothly when you plan the mix early instead of reconstructing it in the final months.
A Domain-Ordered Review Schedule
If you are building a last-stretch plan, order it by weight and by dependency rather than by textbook sequence. This is one example for a six-week window; compress or stretch it to fit your 90-day scheduling window.
Energy Analysis (22%)
- Start here because it is the largest block and its concepts feed Benchmarking and Controls
- Include the four-item Carbon Emissions Compliance subdomain
Indoor and Site Environment (16%) and Controls and Monitoring (15%)
- Study comfort and ventilation together with the control strategies that deliver them
Benchmarking (13%) and Commissioning (12%)
- Pair measurement with verification: what you compare against, and how you confirm performance
Water Conservation (11%) and General Information (11%)
- Close the easy-to-neglect gaps; together they equal Energy Analysis in weight
Timed practice
- Work the public sample items, then the optional 30-question official practice exam
- Rehearse pacing across 115 items in 150 minutes
Pacing works out to a little over 1 minute 20 seconds per item, so practice making a decision and moving on. Review the official public sample items first, then consider the optional official practice exam: 30 questions, $49, single use within thirty days of purchase. It is not a certification exam and is not a validated diagnostic or pass predictor, so use it to test format familiarity, not to forecast your score. For additional questions mapped to the domains, try the HBDP practice tests on the main site.
Quick Answers
There are 115 questions in total. 100 are scored and 15 are unscored trial items mixed throughout, and you cannot tell which are which. You have 2 hours 30 minutes.
You need 70 correct out of the 100 scored items. The figure is confirmed by the candidate guide, a Certification Committee decision, and ASHRAE's FAQ. See the passing score guide for detail.
No. Membership only lowers the fee, and no preparatory course, purchased publication, or fixed training-hour prerequisite is required for any of the four eligibility routes.
That depends on your role and employer. Government labor data describes occupations, not an HBDP-specific earnings premium, so no certification-driven raise should be assumed. The ROI analysis and salary guide lay out what the evidence does and does not support.
You can retake after a three-month wait. The first retake costs $220 for members, $130 for Developing Economies members, or $285 for nonmembers; later retakes require the full applicable application fee. Review the cost breakdown before budgeting for a second attempt.