- Status and Scope: Read This First
- How the Historical Blueprint Is Built
- Domain 1: Develop and/or Review the Work Order
- Domain 2: Identify Materials and Staffing Needs
- Domain 3: Develop Plan to Execute Work Order on Site
- Domain 4: Prepare House to Execute Work
- Domain 5: Execute Work Order and Manage Project
- Domain 6: Job Finalization Activities
- Domain 7: Final Documentation
- Exam Format, Practicum and Legacy Requirements
- Sequencing a Review of the Seven Domains
- What This Means for Existing Credential Holders
- Frequently Asked Questions
- Crew Leader (CL) is a retired Building Performance Institute credential; exams were permitted only through September 30, 2026.
- The handbook's multiple-choice blueprint lists seven duties, A through G, and publishes no percentage weights.
- The historical knowledge exam had 100 multiple-choice questions and a two-hour limit.
- Existing CL credentials stay valid until their individual expiration dates, despite the retirement.
Status and Scope: Read This First
Before going domain by domain, one point needs to be clear. The Building Performance Institute (BPI) retired the Crew Leader certification effective October 1, 2026. Examinations were permitted through September 30, 2026, and BPI's current certification directory lists Crew Leader under Retired Certifications. This site therefore treats the seven domains below as historical written-exam objectives, useful for existing holders, people who worked under the scheme, and anyone studying how weatherization crew leadership was formally defined. Nothing here should be read as a currently bookable exam.
The article follows the exact duty headings in the Crew Leader Certification Scheme Handbook (revised July 1, 2022), Section 8. These are the issuer's words, not editorial study categories invented for convenience. If you want the broader background first, start with What Is CL Certification? and What Does CL Stand For?, then return here for the content breakdown.
How the Historical Blueprint Is Built
The handbook's blueprint is organized around the sequence of a weatherization or energy-efficiency retrofit job, from the paperwork that starts it to the paperwork that closes it. That ordering matters. A crew leader is the person translating a work order into a finished house, so the domains read like a project timeline: review, resource, plan, prepare, execute, finalize, document.
Two cautions apply when reading the blueprint:
- No percentage weights are published. The handbook lists the seven duties and the tasks beneath them, but it does not state what share of the 100 questions each domain carries. Counting tasks and converting the counts to percentages would produce numbers the issuer never published, so this guide does not do that.
- The field outline is a separate document. The Crew Leader Field Guide (dated September 27, 2013) describes the hands-on assessment. It should not be mixed with the written-exam headings, which come from the handbook.
For a plain-language look at how the written test felt in practice, see How Hard Is the CL Exam? and the historical figures discussed in CL Passing Score.
Domain 1: Develop and/or Review the Work Order
Duty A: Develop and/or Review the Work Order
Everything downstream depends on the work order. Candidates were expected to read a scope of work critically rather than accept it at face value.
- Confirm the scope is complete, internally consistent and matches the house you are standing in
- Spot conflicts between measures, such as insulation or air sealing work that depends on an unresolved moisture or combustion issue
- Recognize when a work order needs clarification or revision before crews are sent out
- Understand how the order ties to the audit or assessment that produced it
The "develop and/or review" wording signals that some crew leaders write work orders while others inherit them from an auditor. Either way, the knowledge test rewards the habit of questioning the document. A scenario might describe a measure that is listed but impractical given the building's condition, and ask what the crew leader should do first. The safe pattern is to flag, clarify and document before proceeding.
Domain 2: Identify Materials and Staffing Needs
Duty B: Identify Materials and Staffing Needs
Once the scope is sound, the crew leader converts it into what must be on the truck and who must be on the job.
- Translate measures into material quantities and specifications
- Match crew size and skill mix to the tasks and the schedule
- Identify required tools, equipment and safety supplies, not just consumables
- Anticipate lead times and avoid mid-job shortages that stall production
This domain is where weatherization arithmetic shows up: areas, volumes and quantities that feed into ordering and staffing decisions. The reasoning is practical. A crew that arrives short on a specified material or lacks a trained person for a particular task loses a day, and a crew leader is accountable for preventing that. Expect questions that ask you to choose the most appropriate resource decision rather than recite a definition.
Domain 3: Develop Plan to Execute Work Order on Site
Duty C: Develop Plan to Execute Work Order on Site
Planning is about order of operations. Retrofit measures interact, so sequence is a technical decision, not a scheduling convenience.
- Sequence measures so earlier work does not obstruct or undo later work
- Account for access, occupant presence, weather and site constraints
- Build in safety planning and the points where testing or inspection must occur
- Assign responsibilities clearly so each crew member knows the plan
A common reasoning pattern here: air sealing is generally planned before insulation covers the surfaces that need sealing, and combustion safety concerns must be addressed before measures that could affect appliance operation. The exam asks you to recognize why a sequence is right, not to memorize a single universal order. If you are building a review plan around these ideas, the CL study guide and CL cheat sheet collect the key facts in a compact form.
Domain 4: Prepare House to Execute Work
Duty D: Prepare House to Execute Work
Before the first measure goes in, the house and the occupants have to be ready, and the site has to be safe.
- Protect the occupants' belongings and finished surfaces
- Establish work areas, containment and access routes
- Verify pre-work conditions, including hazards identified before work begins
- Brief the crew on site-specific safety and any occupant concerns
Candidates also needed to show that they understood safety obligations on a job site. The historical prerequisites included an OSHA 30 credential, which reflects how central safety was to the role. Questions in this domain often present a hazard or an occupant-communication problem and ask for the best first action. Protecting people and the building comes before production speed.
Domain 5: Execute Work Order and Manage Project
Duty E: Execute Work Order and Manage Project
This is the longest stretch of a real job and the heart of the leadership role: directing the work while keeping quality, safety and schedule in balance.
- Supervise installation quality against the work order and applicable standards
- Use diagnostic testing to verify that measures are performing, not merely installed
- Handle change orders, unexpected conditions and communication with the client or program
- Manage crew performance, safety compliance and day-to-day problem solving
Diagnostic testing is the thread connecting the knowledge exam to the practicum. The hands-on field assessment involved three props and diagnostic testing, so the written questions in this domain tend to test why and when a diagnostic is used, and what a result implies for the next decision. The written exam is closed-book except for BPI standards supplied through the testing site, so familiarity with those standards, rather than memorized numbers, was the practical advantage.
Domain 6: Job Finalization Activities
Duty F: Job Finalization Activities
A job is not finished when the last measure goes in. Finalization confirms the work meets the order and leaves the home in good condition.
- Perform final inspections and verification testing against the scope of work
- Confirm site cleanup and restoration of areas disturbed during work
- Walk the completed work through with the client or responsible party
- Identify and correct deficiencies before sign-off
The recurring theme is verification before departure. Expect scenarios where a measure appears complete but a test or inspection reveals a problem, and the correct answer is to resolve it rather than document around it.
Domain 7: Final Documentation
Duty G: Final Documentation
Documentation is the record that the work was done, tested and accepted. It protects the crew, the contractor, the program and the household.
- Complete accurate records of measures installed, materials used and test results
- Reconcile the finished job against the original work order and any change orders
- Maintain required records for program or quality-assurance review
- Communicate relevant information to the client at close-out
It is easy to underestimate this domain because it sounds clerical. In practice, weatherization programs and quality-assurance reviewers rely on these records, and the exam treats accuracy and completeness as professional obligations. The same logic that opens the blueprint, reading the work order carefully in Domain 1, closes it here by reconciling what was done against what was ordered.
Exam Format, Practicum and Legacy Requirements
The written exam was only one piece of the credential. The table below separates the historical components so they are not confused with one another.
| Component | Historical Detail |
|---|---|
| Knowledge examination | 100 multiple-choice questions, two-hour limit, closed-book except for BPI standards supplied through the testing site |
| Knowledge passing standard | Form-specific; the legacy page lists 69% or 75%, not one universal threshold |
| Practicum, computer component | 35 multiple-choice questions, one hour, closed-book |
| Practicum, field component | Three hours 30 minutes, hands-on, open-book without outside assistance, with three props and diagnostic testing |
| Combined practical passing score | 78% |
| Administration | BPI Test Centers and approved proctors; fees set by the center |
Historical eligibility was demanding. It included a high-school diploma, GED or foreign equivalent (or a qualifying state career-readiness certificate with at least a 3 on each WorkKey, or the documented experience substitute); OSHA 30; 4,000 industry hours, or 2,000 with BPI Retrofit Installer Technician certification including at least 1,000 as a certified RIT; 100 hours of job-task-analysis-aligned building-science coursework; at least 15 qualifying application points; and BPI approval. A no-education-credential route additionally required 1,000 hours in a qualifying compliance-based program and an employer letter. The details are laid out in CL Requirements, and the fee structure is explained in CL Certification Cost, where the key point is that fees were set by the individual test center rather than by one national price.
Note also that the prerequisites supporting document, revised April 23, 2019, uses older BPI/NREL Installer terminology. Where it differs from the 2022 application, treat the more recent paperwork as the better guide to the final version of the scheme.
Sequencing a Review of the Seven Domains
For anyone studying these domains historically, one organizing principle works better than a generic schedule: follow the job's own sequence, but give extra time to the places where field experience does not automatically transfer to the written test. A reasonable pattern looks like this.
Domains 1 and 2
- Practice reading sample work orders for gaps and conflicts
- Work through material and staffing quantity reasoning
Domains 3 and 4
- Rehearse sequencing logic and why measures interact
- Review site preparation and safety obligations
Domain 5
- Spend the most time here: diagnostics, quality control and project management together
- Practice with the BPI standards available during the exam
Domains 6 and 7, then review
- Drill verification and documentation scenarios
- Revisit weak areas and take a timed mixed set
Domain 5 gets its own week because it combines the most technical and managerial content. For timed practice, the question-style drills on the main practice test site are labeled as historical practice material. They are not official exam content and are not tied to a current booking.
What This Means for Existing Credential Holders
If you already hold a Crew Leader certification, retirement does not erase it. Existing credentials remain valid until their individual expiration dates. The published scheme specified a three-year certification cycle, and under the legacy provisions 24 qualifying CEUs could waive the knowledge retest, though the two-part practical assessment remained mandatory along with ethics reattestation. These are legacy renewal provisions, not verified post-retirement renewal availability, and BPI's general 2023 renewal policy excludes CL and refers back to the scheme. If your expiration is approaching, contact BPI directly to learn what is possible rather than relying on the older web prompts.
The same retirement notice also retires RIT, so it should not be presented as an available replacement path. For a clear-eyed look at the career side, read CL Salary Guide and Is the CL Certification Worth It?, and see CL Jobs for the kinds of weatherization roles where these skills apply. The skills in all seven domains, from work-order review to documentation, remain the substance of the job regardless of the credential's status. For a general orientation, What Is CL? and CL Exam Dates explain how the retirement timeline fits in, and you can return to the practice test hub for historical review questions.
Frequently Asked Questions
No. BPI retired the certification effective October 1, 2026, and examinations were permitted only through September 30, 2026. This site covers the exam as a historical reference.
Seven, matching duties A through G in the handbook's multiple-choice blueprint: from developing or reviewing the work order through final documentation. No percentage weights were published for them.
It had 100 multiple-choice questions with a two-hour limit. The passing standard was form-specific, and the legacy page lists 69% or 75% rather than a single universal threshold.
Yes, until its individual expiration date. Retirement does not revoke current credentials, but renewal availability after retirement is not verified, so confirm directly with BPI.
No. It belonged to a separate two-part practicum: a 35-question, one-hour computer component and a three-hour-30-minute field assessment, with a combined practical passing score of 78%.