Designated Design-Build Professional (DBIA) — Advanced Study Guide

Designated Design-Build Professional (DBIA) — Advanced Study Guide

Issuing body: Design-Build Institute of America (DBIA) Jurisdiction: United States Level: Professional Prerequisites: Approved application; bachelor's degree in an approved field (or experience equivalent); 3–6 years of integrated project delivery experience (roughly two-thirds design-build); the four core courses + Code of Conduct webinar; 18 elective hours; 3 references (at least 1 owner). (The junior tier, Associate DBIA, has reduced requirements — see the good-to-know guide.) Renewal: 24 hours of continuing education every 2 years.

1. How the credential is earned

1. Apply to DBIA with education/experience documentation and 3 references (one must be an owner).
2. Complete the four core courses (Principles of Project Delivery; Procurement; Contracts; Execution) plus the Code of Conduct webinar. These teach "Design-Build Done Right" — the exam's doctrinal core.
3. Complete 18 elective hours (can be done after the exam — you may sit the exam once the application is approved and core courses are done, but the designation isn't awarded until electives are complete).
4. Sit the exam: 100 multiple-choice questions, 2 hours, pass at 72%. Results immediate. Up to 4 attempts in 12 months (1-week wait after first failure, 14-day waits after; $400 per re-sit). (Per DBIA's official certification FAQ.)
5. Maintain: 24 CE hours per 2 years.

Exam strategy: 100 questions in 120 minutes = 72 seconds each. The exam is doctrine-heavy, not calculation-heavy: it tests whether you internalized Design-Build Done Right (the 10 best practices and their implementing techniques). Weights (official): Guiding Principles 8%, Foundations of Design-Build Done Right 8%, Procuring Design-Build Services 30%, Contracting for Design-Build Services 24%, Executing Design-Build Projects 30%. Procurement + execution are 60% — study accordingly.

2. Knowledge domains

2.1 Why design-build: the delivery-system logic

Project delivery answers three questions: how are team members organized (delivery system), how are they selected (procurement method), how are they paid (contracting approach). Design-build's defining move: the owner holds one contract with the design-builder for both design and construction — single point of responsibility. Consequences the exam tests: (a) design and construction can overlap (fast-tracking — DB is the fastest delivery method); (b) the owner loses direct control of design detail (managed through performance requirements and bridging documents); (c) design-error risk shifts from owner to design-builder (in DBB the owner warrants the plans via the Spearin doctrine; in DB the design-builder owns design).

Compare: Design-Bid-Build — linear, slowest, prescriptive, owner knows exactly what it wants; Multi-prime — owner holds many contracts (coordination risk on the owner); CM-at-Risk — contractor on early for preconstruction but designer/builder still separate.

2.2 The 10 best practices (Design-Build Done Right)

Organized in three chapters — Procurement (BP 1–4ish), Contracting, Execution — with 59 implementing techniques total. The exam tests the practices and their logic:

Procurement best practices:

• BP 1: The owner conducts a proactive, objective assessment of project/organizational characteristics before choosing DB — DB is a choice, not a default.
• BP 2: The procurement plan must enhance collaboration and align with why the owner chose DB.
• BP 3: Competitive procurements seeking price + technical proposals need clear evaluation and selection processes (stated criteria, weightings disclosed).
• Two-step procurement is the norm: Step 1 (RFQ) — shortlist on qualifications (3–5 teams); Step 2 (RFP) — proposals from shortlisted teams, often with stipends for unsuccessful proposers on complex projects (the exam tests that stipends buy better competition and ownership of ideas).

Procurement methods: Qualifications-Based Selection/QBS (Brooks Act model for A/E — price not a factor), Best Value (qualifications + price, weighted), Low Bid (price only — the anti-pattern for DB), Sole Source/Negotiated. The exam's judgment: best value dominates DB procurement because design quality can't be low-bid.

Contracting best practices:

• Contracts must be fair, balanced, and clear, promoting the collaborative aspects of DB.
• The owner–design-builder contract addresses DB's unique aspects: the standard of care for design services (the professional negligence standard — what a reasonably competent designer would do — not perfection, and design-build does not convert it to a warranty unless the contract says so), performance vs. prescriptive requirements, and intellectual property/ownership of design.
• Design-builder ↔ team member contracts must carry the same collaborative DNA downstream.
• Federal overlay: the Miller Act (1935) requires payment and performance bonds on federal construction; the Brooks Act (1972) mandates QBS for federal A/E procurement; the Clinger-Cohen Act (1996) (Federal Acquisition Reform Act) authorized federal agencies to use design-build — know the year-to-law mapping, it's tested.

Contract formats: Lump Sum (fixed price — design-builder owns cost risk), Cost-Plus-Fee (owner owns cost risk), GMP (cost-plus with a ceiling — overruns above GMP are the design-builder's; savings below are shared or owner's per contract), Unit Price, Target Price. The exam tests who holds which risk under each.

Execution best practices:

• The whole team (owner included) behaves collaboratively: co-location/Big Room where warranted, transparent cost reporting, early involvement of trade partners.
• Trust mechanics the exam names: pick the right team, give flexibility + opportunity + accountability, reward superior performance.
• Commissioning and closeout are planned from the start, not discovered at the end.

2.3 Guiding principles and foundations (16% combined)

The principles underlying the practices: collaboration over adversity, fair risk allocation (risk to the party best able to manage it — the exam's universal risk answer), mutual respect and trust, owner leadership and informed decision-making. "Foundations" covers the delivery/procurement/contracting vocabulary above — the exam checks you can define the terms before applying them.

3. Key concepts (this exam is doctrine, not equations)

4. Worked examples

Example 1 — Procurement design. A city wants a $40M recreation center via design-build. Correct structure: RFQ → shortlist 3 teams on qualifications (DB experience, key personnel, past performance) → RFP with bridging documents (performance requirements at ~30% design) → best-value selection (e.g., 60% technical/qualifications, 40% price) → stipends ($25–50k) to unsuccessful proposers. The exam's traps: low-bid selection (wrong for DB), RFP to 8 teams (wastes industry resources, weakens competition), no stipend on a complex pursuit (suppresses proposal quality).

Example 2 — Risk allocation. Geotechnical risk on a DB highway: the owner provides the geotech report and warrants its accuracy as a basis for bidding but the design-builder owns design decisions made from it — the exam's fair-allocation pattern is owner warrants data, design-builder owns design. Differing site conditions clauses still apply; the exam tests that DB doesn't erase DSC protection.

Example 3 — Contract format choice. Owner priority: budget certainty on a well-defined DB project → Lump Sum. Priority: speed with evolving scope on a complex facility → GMP (owner shares in savings, capped exposure). The exam gives the owner's priority and expects the matching format.

Example 4 — Standard of care dispute. A DB project's HVAC underperforms. The owner claims the design-builder "guaranteed" performance. Analysis: unless the contract converted the standard to a warranty (performance guarantee language), the design-builder is judged by the professional standard of care — did a reasonably competent designer produce this design? The exam tests that DB ≠ automatic performance warranty.

Example 5 — Best-value scoring. Technical 600 pts (team 200, approach 250, past performance 150), price 400 pts (lowest price gets full 400; others pro-rated: score = 400 × low bid / bid). Team A: 520 technical + $38M bid (low) → 920. Team B: 560 technical + $40M → 560 + 380 = 940 → B wins despite higher price. That's the point of best value, and the exam's arithmetic when it does numbers.

5. Standards/regulations cross-reference

• DBIA contract documents (Standard Form of Agreement Between Owner and Design-Builder) — the exam's reference contract family; know how it allocates design responsibility vs. AIA A101/A201.
• AIA A201 / ConsensusDocs — the comparison set; the exam tests differences in change/dispute handling.
• Miller Act (1935), Brooks Act (1972), Clinger-Cohen (1996) — the federal statutory spine (bonds, QBS, DB authorization).
• State DB authorization statutes — DB isn't authorized for all public owners in all states; the exam tests that the owner must have legal authority to use DB (BP 1's assessment includes this).
• OSHA 1926, Davis-Bacon — execution-phase compliance the design-builder owns (see the CCM guide).

6. Pitfalls and trap patterns

• Low-bid reflex. Any answer selecting the design-builder on price alone contradicts DBIA doctrine — reject on sight.
• DB as default. BP 1: DB must be chosen after assessment. "Always use DB" answers are wrong.
• Warranty confusion. Design-build transfers design responsibility, not an automatic performance guarantee — the standard of care still governs unless contracted otherwise.
• Owner abdication. Single point of responsibility doesn't mean the owner disappears — owner decisions (program, bridging criteria, timely approvals) remain the top success factor, and the exam says so.
• Stipend economics. Refusing stipends on complex procurements looks thrifty and produces weak proposals — the exam treats stipends as best practice, not generosity.

7. Practice problems (answers at end)

1. Name the three questions that delivery system, procurement method, and contracting approach each answer.
2. A public owner wants DB but its state statute only authorizes DBB for municipalities. What must happen before procurement?
3. Which procurement method does the Brooks Act require for federal A/E services, and may price be considered?
4. Under a GMP contract, actual cost comes in $500k below the GMP and the contract is silent on savings. Who keeps the savings, and what should the contract have said?
5. List the standard-of-care defense available to a design-builder sued over a design decision.
6. Score it: Technical weight 60% (Team X 82/100, Team Y 90/100), price weight 40% (X $50M low, Y $55M). Who wins best value?
7. True/false with reason: "In design-build, the owner impliedly warrants the adequacy of the bridging documents under the Spearin doctrine."

Answers: 1. How team members are organized / how they are selected / how they are paid. 2. Obtain legal authority — enabling legislation or an authorized delivery method; proceeding without authority voids the procurement (BP 1 assessment). 3. Qualifications-Based Selection; price may not be a factor in selection. 4. Ambiguity favors dispute — silent contracts typically leave savings with the owner (contractor was reimbursed cost + fee up to GMP), but the contract should have specified a savings-sharing formula; the exam wants the drafting lesson. 5. The design met the professional standard of care — what a reasonably competent designer would have done under the circumstances (expert testimony, industry practice). 6. X: 0.6×82 + 0.4×100 = 89.2; Y: 0.6×90 + 0.4×(50/55×100=90.9) = 54 + 36.4 = 90.4 → Y wins. 7. False as stated — Spearin protects the contractor relying on owner-furnished plans in DBB; in DB the design-builder develops the design from performance criteria, so the doctrine's application is limited (the owner warrants only what it furnished as prescriptive).

Related credentials in this discipline

• CCM → certified-construction-manager-ccm-study-guide.md
• PMP → shared: ../shared/pmp-study-guide.md
• Associate DBIA and other credentials → good-to-know-rules-of-thumb.md

Original ETS reference writing, verified against public sources on 2026-09-30. Thin sourcing is flagged inline. Not legal advice — confirm current editions with the issuing body.