- What This Cheat Sheet Covers (and What It Doesn't)
- The Exam at a Glance
- All 16 Domains with Published Ranges
- Where the Weight Sits: The Domains Worth Extra Time
- Money, Fees, and Registration Mechanics
- Eligibility Routes in One Table
- Open-Book Rules and How to Build Your Paper Reference
- CSDP vs CEM and LEED Green Associate
- Renewal Math
- Original Worked Practice Items
- A Domain-Ordered Review Plan
- FAQ
- The CSDP exam has 111 graded multiple-choice questions in four hours, open-book and open-notes with printed materials only.
- Version 2.0 of the Body of Knowledge, effective June 1, 2025, defines 16 domains; the older 15-section outline is superseded.
- Developing & Implementing Sustainability Plans (7%-11%) and Sustainable Buildings (6%-10%) carry the highest published ranges.
- Application and exam fee is $400 in the US; retests cost $200; renewal is $300 every three years.
What This Cheat Sheet Covers (and What It Doesn't)
This page condenses the facts a Certified Sustainable Development Professional candidate needs into a single scannable review. It is built for the credential offered by the Association of Energy Engineers (AEE), and it follows the current Body of Knowledge rather than the older outline that still circulates on third-party sites and, confusingly, still appears linked on some AEE resource pages.
Two ground rules apply throughout. First, every number here comes from AEE's published documents: the CSDP Body of Knowledge & Study Guide Version 2.0, the CSDP Certification Scheme 1.0, the certification overview flyer, and AEE's fee, renewal, and FAQ pages. Second, nothing here is a leaked or "real exam" question. The practice items later in this article are original study aids written to illustrate the style of reasoning the exam rewards.
If you are brand new to the credential, start with What Is CSDP Certification? for the big picture, then return here as your quick-reference page. For a deeper walkthrough of how to study, see the CSDP Study Guide 2026.
The Exam at a Glance
| Item | What the Published Sources Say |
|---|---|
| Issuer | Association of Energy Engineers (AEE) |
| Format | 111 graded multiple-choice questions |
| Time limit | Four hours |
| Open-book status | Open-book and open-notes; printed textbooks and bound notes allowed, digital reference access prohibited |
| Calculators | Stand-alone scientific, financial, or graphing calculators without internet or Bluetooth |
| Delivery | In-person testing or live remote proctoring through ProctorU/Meazure Learning |
| Breaks | Bathroom breaks do not stop the exam clock |
| Outline in force | Body of Knowledge Version 2.0, effective June 1, 2025 (16 domains) |
| Outcome | Passing exam plus Board approval |
Doing the arithmetic on pacing: four hours across 111 questions leaves roughly two minutes per question on average. That is generous for definition-style items and tight for anything involving a multi-step financial or energy calculation. Because the clock keeps running during breaks, plan to sit the exam as one continuous block.
All 16 Domains with Published Ranges
The Version 2.0 Body of Knowledge publishes ranges, not fixed weights. Do not convert these into exact question counts; the exam's actual distribution can land anywhere within each band. Memorize the shape of the table, not a false precision.
| # | Domain | Published Range |
|---|---|---|
| 1 | Why We Need Sustainable Development | 4%-6% |
| 2 | Sustainable Development: Definitions | 4%-6% |
| 3 | Environmental Aspects of Sustainable Development | 5%-7% |
| 4 | Social Aspects of Sustainable Development | 4%-6% |
| 5 | Governance and Policy for Sustainable Development | 4%-6% |
| 6 | Climate Change and Decarbonization | 6%-8% |
| 7 | Concept of Sustainable Policy Analysis | 5%-7% |
| 8 | Corporate & Industrial Sustainability Programs | 5%-7% |
| 9 | Sustainable Buildings | 6%-10% |
| 10 | Sustainable Design and Procurement | 4%-6% |
| 11 | Green, Clean, and Alternative Energy | 6%-8% |
| 12 | Energy Systems and Technologies | 6%-8% |
| 13 | Sustainable Transportation | 5%-7% |
| 14 | Water Management | 5%-7% |
| 15 | Financial Assessment & Life Cycle Costing | 6%-8% |
| 16 | Developing & Implementing Sustainability Plans | 7%-11% |
A small naming note: the Certification Scheme table spells the costing domain as "Costings," while the Body of Knowledge 2.0 and the June 2025 certification overview use "Costing." Same content area, slightly different label depending on the document you open. For a domain-by-domain walkthrough, see the CSDP Exam Domains Guide.
Where the Weight Sits: The Domains Worth Extra Time
Because the exam is open-book, the highest-leverage preparation is knowing where to look quickly in the domains that appear most. Two domains stand out by their published ranges, followed by a cluster of 6%-8% domains that together make up a large share of the exam.
Domain 16: Developing & Implementing Sustainability Plans (7%-11%)
The highest range on the exam. This domain tests whether you can move from principle to execution: building a plan, sequencing actions, assigning accountability, and tracking results.
- Know the stages of a sustainability plan from baseline assessment through implementation and review.
- Be ready to reason about stakeholder engagement, goal-setting, and measurement.
- Expect scenario-style questions where several options sound reasonable and one best fits the plan stage described.
Domain 9: Sustainable Buildings (6%-10%)
The second-highest range. Buildings connect directly to energy, water, materials, and occupant considerations, so this domain overlaps with several others.
- Understand how building performance ties to energy systems, water use, and procurement choices.
- Know how green building rating systems and standards are used in practice.
- Expect cross-domain questions that blend building design with life cycle cost reasoning.
The 6%-8% Cluster: Domains 6, 11, 12, and 15
Climate Change and Decarbonization, Green, Clean, and Alternative Energy, Energy Systems and Technologies, and Financial Assessment & Life Cycle Costing each carry a 6%-8% range. Together they form the technical backbone of the exam.
- Decarbonization questions reward understanding of emissions categories and reduction strategies, not just definitions.
- Energy domains reward comfort with how technologies compare on performance, cost, and context.
- The financial domain rewards clean arithmetic with a calculator you have practiced on.
The conceptual domains (1, 2, 4, 5, and 10 at 4%-6%) are individually smaller, but together they still make up a meaningful share. Do not skip them because they feel "soft." They are often the fastest points on the exam when your reference materials are well organized.
Key Takeaway
Rank your study time by published range, but weigh it against your own experience. An engineer with years in energy work can move quickly through Domains 11 and 12 and spend the savings on the policy, social, and governance domains, where technical backgrounds are often thinner.
Wondering how demanding all this is in practice? Our How Hard Is the CSDP Exam? guide breaks down where candidates typically feel pressure.
Money, Fees, and Registration Mechanics
The most common cost mistake is blending two separate charges. The certification application and exam fee is paid to AEE; the training course is a separate purchase. Training registration and exam registration are distinct steps.
| Cost Component | Amount | Notes |
|---|---|---|
| US application and examination fee | $400 | Standard proctoring included in this fee |
| Retest fee | $200 | At least 60 days required between attempts |
| Renewal | $300 | Every three years |
| October 13-15, 2026 AEE training course (standard) | $1,200 member / $1,300 non-member | Awards 24 PDH / 2.4 CEU |
| Same course (late tuition) | $1,300 member / $1,400 non-member | Course price, separate from certification fee |
Premium short-notice scheduling for remote proctoring costs extra; standard proctoring does not. International applicants should not assume the US fee schedule applies: they need to obtain local training, application, examination, and fee details from an AEE-approved training partner. For the full breakdown including how the pieces add up, read the CSDP Certification Cost guide, and for the training side, see CSDP Training.
Remote testing checklist
- Guardian Browser installed on a compatible computer
- Working webcam and microphone
- Printed reference materials organized before exam day, since digital references are prohibited
- A calculator that has no internet or Bluetooth capability
AEE links a Cirrus testing-platform practice that teaches navigation of the testing interface. It does not teach CSDP subject matter, so use it to remove interface surprises, not to study content. Scheduling details and windows live in the CSDP Exam Dates guide.
Eligibility Routes in One Table
Eligibility requires approved preparatory training, an application, and one qualifying route. Related experience means work in energy efficiency, environmental science, pollution prevention, or sustainable development.
| Route | Education / Credential | Related Experience |
|---|---|---|
| 1 | Four-year engineering or architectural degree, or PE/RA | 3 years |
| 2 | Four-year science, business, or related degree | 5 years |
| 3 | Associate degree | 8 years |
| 4 | Current CEM or REP | 3 years |
| 5 | No listed education or credentials | 10 years |
There is also a CSDP-IT pathway, which provides six years to meet full eligibility and uses the same examination. This article stays focused on the full CSDP. Be wary of third-party pages that misstate the associate-degree route; AEE's published requirement is eight years of related experience. The CSDP Requirements guide covers prerequisites and documentation in detail.
Open-Book Rules and How to Build Your Paper Reference
Open-book does not mean easy. With 111 questions in four hours, you cannot afford to research every item from scratch. The skill being tested is judgment plus fast retrieval. Printed textbooks and bound notes are allowed; anything digital is not.
Organize by domain, not by source
Tab your materials using the 16 official domain names so a question's topic maps instantly to a section. A reference organized by the exam's own structure beats one organized by the order you happened to read things.
Create a one-page formula and definition sheet per quantitative domain
- Financial Assessment & Life Cycle Costing: payback, simple return measures, present value concepts, and the definitions that distinguish them.
- Energy Systems and Technologies: unit conversions and efficiency relationships you tend to forget under time pressure.
- Climate Change and Decarbonization: emissions categories and reporting concepts, with plain-language definitions.
Flag your weak spots visibly
Use colored tabs for domains where you needed the book during practice. On exam day, those tabs tell you which questions deserve a lookup and which you should answer from memory and move on.
Key Takeaway
Practice with the exact materials and calculator you will bring. A reference you have never navigated under a timer is much slower than it looks. Run at least one timed session using only your printed binder.
CSDP vs CEM and LEED Green Associate
Candidates frequently ask how the CSDP relates to other credentials. The short answer: it has a broader sustainability-and-policy scope than energy-focused certifications and a wider professional scope than a building-rating-system credential.
| Dimension | CSDP (AEE) | CEM (AEE) | LEED Green Associate (USGBC) |
|---|---|---|---|
| Core focus | Sustainable development across environmental, social, governance, energy, buildings, water, transport, finance, and planning | Energy management | Green building fundamentals and the LEED rating system |
| Issuer | Association of Energy Engineers | Association of Energy Engineers | U.S. Green Building Council |
| Relationship | A current CEM plus three years of related experience is one eligibility route | Can serve as a qualifying credential for CSDP | Separate credential family |
The CEM-to-CSDP link is worth noting: holding a current CEM shortens the experience requirement to three years. If you are weighing the credential's career value, the ROI analysis, the salary guide, and the CSDP jobs overview explain who hires for it and how to separate verified information from marketing claims.
Renewal Math
Renewal runs on a three-year cycle and requires 10 professional credits with documentation, plus the $300 renewal fee. The credit conversions are the part people forget:
| Activity | Credit Value |
|---|---|
| 1 CEU | 2 AEE credits |
| 1 PDH / contact hour | 0.2 credits |
| Continued employment | Up to 3 credits per cycle |
| Qualifying professional membership | Up to 3 credits per cycle |
| Initial qualifying seminar | No renewal credit |
A useful sanity check: the October 2026 training course carries 2.4 CEU, which converts to 4.8 credits under the 2-credits-per-CEU rule. But the initial qualifying seminar cannot earn renewal credit, so that specific course does not count toward your first renewal. Plan renewal credits from later activities, and keep documentation as you go rather than reconstructing it in year three.
Original Worked Practice Items
These are original study aids, not exam content. They illustrate the style of reasoning (definition recall, quick arithmetic, and scenario judgment) that the domains call for. For more item practice, use the CSDP practice test.
Practice Item 1: Life Cycle Costing (Domain 15)
A facility is comparing two pumps. Pump A costs $10,000 up front and $2,000 per year to operate. Pump B costs $14,000 up front and $1,200 per year to operate. Ignoring discounting, after how many years does Pump B's cumulative cost fall below Pump A's?
- Reasoning: The extra upfront cost of B is $4,000. B saves $800 per year on operation. $4,000 ÷ $800 = 5 years to break even.
- Answer: Costs are equal at year 5; B is cheaper cumulatively from year 6 onward.
- Exam lesson: Read whether the question asks for the break-even point or the point after which one option is cheaper. Those are off by one year.
Practice Item 2: Plan Sequencing (Domain 16)
An organization wants to launch a sustainability program. Which activity logically comes first: setting numeric reduction targets, establishing a baseline of current performance, or reporting results to stakeholders?
- Reasoning: Targets require a baseline to be meaningful, and reporting requires data produced by implementation.
- Answer: Establish the baseline first.
- Exam lesson: Plan-stage questions reward ordering logic. Ask what each option depends on.
Practice Item 3: Cross-Domain Judgment (Domains 9 and 11)
A building owner wants to reduce operating emissions. Which sequence is generally most sensible: install on-site renewable generation first, or reduce the building's energy demand first and then size generation to the lower load?
- Reasoning: Reducing demand first lowers the size and cost of any generation system required.
- Answer: Reduce demand first, then size generation to the reduced load.
- Exam lesson: Many sustainability questions have a "reduce before you supply" logic. Recognize it quickly.
A Domain-Ordered Review Plan
If you have about six weeks, sequence your review by dependency rather than by the order of the outline. Foundations first, technical middle, integration last, since Domain 16 draws on nearly everything else.
Foundations and Context
- Domains 1, 2, 3, 4, and 5: why sustainable development matters, definitions, environmental and social dimensions, governance and policy.
- Build your tabbed definitions section as you go.
Technical Core
- Domains 6, 11, 12, and 15: decarbonization, clean energy, energy systems, and life cycle costing.
- Write your formula sheets and drill calculations with your exam calculator.
Applied Sectors
- Domains 9, 10, 13, and 14: buildings, design and procurement, transportation, and water.
- Practice linking each sector back to energy and cost.
Integration and Timed Runs
- Domains 7, 8, and 16: policy analysis, corporate programs, and plan development.
- Run a full-length timed session with only your printed binder.
FAQ
The exam has 111 graded multiple-choice questions and a four-hour time limit, according to the CSDP Certification Scheme. It is open-book and open-notes, but only printed textbooks and bound notes are allowed; digital reference access is prohibited.
Developing & Implementing Sustainability Plans has the highest range at 7%-11%, followed by Sustainable Buildings at 6%-10%. These are published ranges, not fixed weights, so actual question counts per domain can vary.
The US application and examination fee is $400, a retest is $200, and renewal is $300 every three years. The required training course is a separate purchase; the October 2026 AEE course lists standard tuition of $1,200 for members and $1,300 for non-members.
No verified official numeric pass rate or CSDP-specific pass mark was found in the retrieved AEE sources. Certification requires a passing examination and Board approval. Treat any precise third-party percentage with caution.
Renewal is every three years and requires 10 professional credits with documentation plus the $300 fee. One CEU earns two credits, one PDH earns 0.2 credits, and employment and qualifying membership can each earn up to three credits per cycle. The initial qualifying seminar cannot earn renewal credit.
Keep this cheat sheet bookmarked as your fast-reference companion, and pair it with the full domain guide and timed question practice on the main practice test site as exam day approaches.