Construction Phase: Field Functions

Construction Phase: Field Functions on the ExAC: the 2 sub-categories you need to know

Examitect's ExAC study plan covers Construction Phase: Field Functions across two sub-categories. Both appear on the exam in multiple formats: scenario-based questions, ordering questions, and definition questions are most common. The sub-categories sit within Section 4, which tests practice management and project delivery from bidding through post-occupancy.

What field-side CA is, and what it produces

Field-side construction administration (CA) is the set of tasks the architect performs physically on or near the construction site. The goal is to confirm that the work is progressing in general conformance with the contract documents. It does not mean continuous inspection or supervision. You attend the site at intervals appropriate to the stage of construction, observe work in progress, and report findings in writing.

Field-side CA produces four categories of documents: field review reports (a factual record of each site visit), deficiency lists (items of non-conforming or incomplete work), milestone certificates (Certificate for Payment, Certificate of Substantial Performance, Final Certificate for Payment), and post-construction records (warranty notices, as-built drawing records, commissioning documentation).

What field-side CA is not

• Continuous inspection: you visit at intervals appropriate to the construction stage, not full-time.
• Supervision: the contractor supervises the trades and controls their work.
• Quality control: the contractor is responsible for the quality of construction workmanship and materials.
• Safety management: CCDC 2 GC 3.2 places site safety squarely with the contractor. If you observe a life-threatening hazard, you notify the owner and contractor in writing; you do not stop the work yourself.

11.1 Understand the roles of the architect and other participants on site

What sub-category 11.1 tests. Sub-category 11.1 of Examitect's ExAC study plan, taken from the CACB blueprint, is "Understand the roles of the architect and other participants on site." Primary references are CHOP Chapters 2.1 and 6.6, and CCDC 2 Parts 2 and 3. Questions test whether you can distinguish what each participant is responsible for during construction and what limits apply to each role. Expect scenario questions where you must identify who holds responsibility for a specific action: stopping work for safety, correcting a deficiency, paying for an inspection, or coordinating with a testing agency.

The architect's role on site

The architect's primary on-site function is general review: attending the site at intervals appropriate to the construction stage, observing work, and confirming general conformance with the contract documents. Under CCDC 2 GC 2.2, the architect (referred to in CCDC 2 as "the Consultant") administers the contract, certifies payments, and interprets contract documents. The architect is the first-instance adjudicator of disputes between owner and contractor under the contract.

Under GC 2.2.5, the architect has no responsibility for and no control over construction means, methods, techniques, sequences, procedures, or safety precautions. The architect is also not responsible for the contractor's failure to perform per the contract documents. This boundary is one of the most frequently tested concepts in this sub-category.

The contractor's role on site

The contractor executes the work, supervises all trades and subcontractors, controls site safety, and coordinates the work of all parties on site. The contractor selects construction methods and sequences. Under CCDC 2 GC 3.2, when multiple contractors or the owner's own forces are working on the same project, the contractor must coordinate work with the others and report any apparent deficiencies in their work in writing before proceeding.

The owner's role during construction

The owner makes decisions, authorizes changes, and makes payments. The owner does not direct the contractor. All instructions to the contractor flow through the architect. If the owner gives a direct instruction to the contractor, it may constitute an unauthorized change in the work. The owner also provides occupancy and access rights, and is responsible for disclosing known hazardous substances on the site before construction begins (CCDC 2 GC 9.2).

Sub-consultants and testing agencies

Structural, mechanical, and electrical engineers conduct their own field reviews aligned with their disciplines and submit reports to the architect for coordination. Testing and inspection agencies (concrete testing, soil compaction, material testing laboratories) are typically retained directly by the owner. The contractor is required to give the architect reasonable notice when work is ready for testing. Under GC 2.3.2, the contractor must also arrange and notify the architect of the date and time for inspections by authorities having jurisdiction.

11.2 Understand the field functions associated with the construction phase

What sub-category 11.2 tests. Sub-category 11.2 of Examitect's ExAC study plan is "Understand the field functions associated with the construction phase." Primary references are CHOP Chapters 6.6, 6.7, and 6.8, and CCDC 2 Parts 2, 3, and 4. This is the broadest sub-category in the topic: it covers the full sequence of construction-phase field activities from the first site visit through the one-year warranty walkthrough. Questions test your ability to sequence field activities, identify which document is appropriate for a given situation, and apply contract milestones correctly. Ordering questions and scenario-based questions are the most common formats.

The six main field-function areas

1. Site visits and general review: periodic attendance on site to observe conformance, scheduled at intervals appropriate to the construction stage.
2. Field review reports: written record of every site visit, distributed promptly after each visit to the owner, contractor, and relevant consultants.
3. Site meetings and RFIs: regular coordination meetings with the contractor, owner, and consultants; written responses to contractor requests for information.
4. Deficiency management: documenting non-conforming work, directing the contractor to correct it, and tracking status through to resolution.
5. Payment certification and change management: certifying monthly progress payments, issuing supplemental instructions, change orders, and change directives.
6. Takeover and warranty: certifying Substantial Performance, verifying Ready-for-Takeover, issuing the final certificate, and conducting the one-year warranty review.

The five study cards that follow cover each of these areas in detail. The sequence above is also the chronological order you would follow on a typical construction project.

Site visits and field review reports

When to visit

CHOP Chapter 6.6 lists the standard trigger points for site visits. You schedule visits at your professional judgment, but the following situations are minimum expectations:

• Project startup and excavation
• Start of major structural work: forming, framing, steel erection, masonry
• Before work is covered up: insulation, fireproofing, vapour barriers, blocking, electrical and mechanical rough-in
• Immediately before and during concrete placement (verify dimensions, reinforcing, mechanical sleeves, embedded items)
• When significant new materials or equipment arrive on site
• Start of finishing trades: floors, cabinetwork, wall finishes, painting
• After significant weather events
• Before early or phased occupancy (bring an updated deficiency list)
• Before the Substantial Performance application
• Before the one-year warranty expires

Varying visit timing

CHOP recommends varying the day and time of your visits to prevent contractors from anticipating your arrival. A contractor who always knows when you are coming may present work differently than on an unannounced basis. This is a straightforward ExAC trap: the correct visit frequency is "intervals appropriate to the stage of construction," not a fixed weekly schedule set in advance.

What a field review report must contain

You write the field review report after every site visit without exception. CHOP Chapter 6.6 lists the required content:

1. Name and position of the person conducting the review
2. Date, time, and duration of the visit
3. Weather conditions
4. Names of those present (contractor superintendent, owner representative, consultants)
5. Percentage of work completed by trade
6. Work in progress at time of visit
7. Work scheduled before the next visit
8. Questions raised by the contractor or owner, and your determinations
9. Outstanding issues requiring action, with responsible party and deadline
10. Status of deficiencies from previous reports
11. Distribution list and sequential report number

Site meetings, RFIs, and shop drawing reviews

Site meetings

Regular site meetings bring together the architect, owner (or representative), contractor, and relevant sub-consultants to review progress, resolve outstanding issues, and clarify upcoming work. You chair site meetings and distribute minutes within 48 hours. Minutes must identify each agenda item, the decision reached, the party responsible for action, and the deadline. Unresolved items carry forward as standing agenda items until closed.

Requests for Information (RFIs)

An RFI is the contractor's formal written request for clarification of the contract documents. You must respond to every RFI, even if the answer is "no change required" or "see specification section X." Under CHOP Chapter 6.6, if the contractor submits a pattern of unnecessary RFIs, you may invoice the client for additional administrative costs beyond an agreed minimum threshold (typically five unnecessary RFIs triggers a billing adjustment). Never ignore an RFI; an unanswered RFI can become a claim for delay.

Your response to an RFI takes one of three forms: a written reply noting no change required, a supplemental instruction (SI) if a clarification is needed but no price or time change results, or a proposed change (PC) if the clarification has contract price or schedule implications.

The change document hierarchy

Shop drawing and submittal review

Shop drawings are the contractor's detailed fabrication drawings, product data, and samples submitted for review before work is fabricated or installed. You review submittals for conformance with design intent; you do not review means and methods. The review hierarchy is: system performance criteria first, then product data, then shop drawings, then samples, then mock-ups.

Your review stamp must accurately describe the scope of review. CHOP Chapter 6.8 provides standard stamp language. Under CCDC 2 GC 2.2.13, you review and take appropriate action on submittals per the contract documents. A shop drawing review does not relieve the contractor of responsibility for accuracy or for meeting the contract requirements.

Non-conforming work, deficiency management, and hazardous substances

What is non-conforming work?

Non-conforming work is work that departs from the requirements of the contract documents: work that does not match the drawings or specifications, materials that do not meet specified standards, or work installed in the wrong location or sequence. Non-conforming work can occur at any point during construction, not just at project closeout.

The architect's authority to reject work

Under CCDC 2 GC 2.2.11, you have authority to reject work that does not conform to the contract documents and may require special inspection or testing of any work. This authority does not make you responsible for the contractor's performance; it is a contractual tool to enforce the standard of the contract documents. When you reject work, record the rejection in the field review report and issue written direction to the contractor specifying the deficiency and the required correction.

Uncovering covered work

Under GC 2.3.4, if the contractor covers work that was designated for inspection before that inspection occurred, you may direct the contractor to uncover it. The contractor pays for uncovering and restoring if the work is non-conforming. The owner pays if the work is found to be conforming. Under GC 2.3.5, you may also order any portion of the work examined to verify conformance regardless of whether it was designated for inspection. The same cost allocation rule applies.

Deficiency lists

A deficiency list identifies incomplete or non-conforming items requiring correction. You should prepare and update deficiency lists throughout the project, not only at closeout. Each item should identify the location, the deficiency, and the standard it must meet per the contract documents. Issue the list to the contractor in writing and track the status of each item at every subsequent site visit. At the end of the project, the deficiency list must be resolved before you issue the Final Certificate for Payment.

Hazardous substances on site

Under CCDC 2 GC 9.2, the owner is responsible for disclosing known hazardous substances before the contractor starts work and for taking all necessary steps to address pre-existing hazardous conditions. If the contractor encounters hazardous substances not disclosed by the owner and not brought to the site by the contractor, the contractor must stop the affected work, take reasonable steps to protect workers, and immediately notify the architect and owner in writing. You receive the report and coordinate the owner's response. Remediation of pre-existing hazardous conditions is the owner's contractual obligation, not the architect's.

Payment certification and change management

Certificates for Payment

Each month, the contractor submits a progress payment application listing the percentage of each work item completed, based on the Schedule of Values agreed at project startup. You review the application, confirm the percentages based on your site observations and sub-consultant input on their disciplines, and issue a Certificate for Payment to the owner authorizing payment. Under CCDC 2 GC 5.3, the certificate is the architect's representation to the owner of the amount owing based on work performed.

Holdback is a percentage of each progress payment retained by the owner under provincial lien legislation as security for subcontractors and suppliers. The architect does not release holdback; holdback release follows specific lien legislation procedures after the holdback period expires following Substantial Performance.

Substantial Performance and holdback release (GC 5.4)

When the contractor applies for a Certificate of Substantial Performance, you have 20 calendar days to either certify the date of Substantial Performance or notify the contractor in writing of reasons it has not been reached. Substantial Performance triggers two things: the start of the holdback period under lien legislation and the release of most of the remaining contract balance. It does not start the warranty clock: under GC 12.3.1, the one-year warranty period runs from the date of Ready-for-Takeover.

Under GC 5.4.2, if the lien holdback has not been placed in a separate holdback account, the owner must place the holdback amount in a joint bank account in the names of both owner and contractor no later than 10 calendar days before the holdback period expires. The holdback is a statutory trust fund: it cannot be used by the owner to force the contractor to correct deficiencies.

Final Certificate for Payment (GC 5.5)

After all deficiencies are corrected and the work is complete, the contractor submits an application for final payment. You have 10 calendar days to review the work and issue the final certificate if satisfied. The owner must pay the certified amount within 5 calendar days of receiving the certificate. The 5-day deadline is a frequent ExAC question; know it.

Takeover procedures: Substantial Performance to Ready-for-Takeover

Substantial Performance

Substantial Performance is the point at which the work is usable for its intended purpose and the remaining deficient or incomplete work falls below the threshold defined by provincial lien legislation. The exact threshold varies by province and territory; the architect must know the rules for the jurisdiction where the project is located. You issue a Certificate of Substantial Performance, which the contractor may be required to publish in a construction trade newspaper to start the lien claim period for subcontractors and suppliers.

Ready-for-Takeover

CCDC 2 uses the term "Ready-for-Takeover" to describe the full contractual state at which the contractor has satisfied all prerequisites for transferring the building to the owner. Substantial Performance is one item on this checklist. Under GC 12.1.1, the prerequisites are limited to the following eight items:

• Substantial Performance of the work certified or verified by the consultant
• Evidence of compliance with the requirements for occupancy or occupancy permit, as prescribed by the authorities having jurisdiction
• Final cleaning and waste removal completed at the time of applying for Ready-for-Takeover, as required by the contract documents
• Operations and maintenance documents reasonably necessary for immediate operation and maintenance delivered to the owner, as required by the contract documents
• A copy of the as-built drawings, completed to date, made available on site
• Startup and testing required for immediate occupancy completed, as required by the contract documents
• Ability to secure access to the work provided to the owner, if required by the contract documents
• Demonstration and training, as required by the contract documents, scheduled by the contractor acting reasonably

Conditional and phased occupancy

Unconditional occupancy occurs when all life-safety and occupancy permit requirements are fully satisfied. Conditional occupancy is issued when the building is safe but a portion of the work remains incomplete per the construction documents. Phased occupancy applies to large projects where discrete, complete portions of the building can be occupied while other areas remain under construction. Each phased occupancy may require additional architect services and should be addressed in the owner-architect agreement before construction begins.

Letters of Assurance

In British Columbia, Alberta, and Nova Scotia, the architect must provide a Letter of Assurance at the time of applying for an occupancy permit. This letter certifies that the building has been constructed in general conformance with the building code, applicable regulations, and the construction documents submitted for the building permit. Sub-consultants may also be required to provide letters of assurance for their disciplines. The letter confirms general conformance, not absolute code compliance.

Warranty period and post-occupancy obligations

The one-year warranty under CCDC 2 GC 12.3

Under CCDC 2 GC 12.3.1, the warranty period is one year from the date Ready-for-Takeover is attained, not from the date of Substantial Performance. The contractor is responsible for correcting defects and deficiencies that appear during the warranty period at no cost to the owner. Under GC 12.3.3, the owner must notify the contractor in writing of observed defects through the architect. Under GC 12.3.4, the contractor must correct them promptly.

Extended warranties required beyond the one-year period (for specific products or systems) pass through from the manufacturer or warrantor. The contractor's obligation is limited to obtaining those warranties; the ongoing warranty obligation is the warrantor's responsibility, not the contractor's.

The one-year warranty walkthrough

You arrange a warranty review shortly before the one-year anniversary date. The review typically involves the architect, relevant sub-consultants, the owner or owner's maintenance personnel, and the contractor. At each item you encounter, you determine whether it is a contractor deficiency (correctable under warranty) or a maintenance issue (the owner's responsibility). Compile the deficiency list from the review and send it to the contractor in writing before the warranty period expires. If the contractor fails to correct items within a reasonable time, you advise the owner to review their rights under the bonding and insurance provisions of CCDC 2.

Seasonal system testing

Some systems can only be fully tested under seasonal operating conditions: heating systems in winter, cooling systems in summer, rooftop drainage in spring. If the project reached Ready-for-Takeover before a system could be tested under those conditions, you may accept that system conditionally at takeover and schedule a seasonal review once the conditions exist. The contractor must demonstrate that the system satisfies all design requirements before you recommend final acceptance for that system. Document any adjustments made and update the operations and maintenance manuals accordingly.

Post-occupancy evaluation

A post-occupancy evaluation (POE) assesses how well the completed building performs against the owner's original program requirements. POEs address both functional performance (spatial efficiency, user satisfaction, work-flow patterns) and technical performance (envelope performance, finishes durability). A POE is not part of the architect's basic services; it is an additional service. Confirm scope and fee in the owner-architect agreement. POEs are typically conducted at 6 or 12 months after occupancy and can directly inform future projects for the same client.

How each reference fits the field-functions sub-categories

Both sub-categories rely on CHOP and CCDC 2. Use CHOP for the procedural "how" (how to write a field review report, what to bring to a takeover review) and CCDC 2 for the contractual "who and when" (who bears responsibility, which clause triggers payment, how many days the architect has to respond).

Key construction field-functions terms (glossary)

General review

The architect's regulatory obligation to attend the site at intervals appropriate to the construction stage and confirm general conformance with the permitted drawings. Not continuous inspection.

Field review report

A written record prepared after each site visit, documenting observations, deficiencies, actions required, and participants present. A factual record, not a direction to the contractor.

Substantial Performance

The point at which the work is usable for its intended purpose and the remaining deficient or incomplete work is below the threshold defined by provincial lien legislation. Triggers the holdback release period under lien legislation; the one-year CCDC 2 warranty period runs from Ready-for-Takeover, not from this milestone.

Total Performance

The point at which all work under the contract is complete, including all items on the deficiency list. Triggers the Final Certificate for Payment.

Ready-for-Takeover

The CCDC 2 contractual state at which the contractor has satisfied all prerequisites for transferring the building to the owner. The GC 12.1.1 list is limited to eight items, including Substantial Performance, evidence of compliance with occupancy requirements, operations and maintenance documents, and scheduled demonstration and training. The one-year warranty period starts from this date.

Certificate of Substantial Performance

A document issued by the architect under applicable lien legislation, certifying the date of Substantial Performance. Triggers the start of the lien holdback release period; the CCDC 2 warranty period starts at Ready-for-Takeover, not at this certificate.

Holdback

A percentage of each progress payment retained by the owner under provincial lien legislation as security for subcontractors and suppliers. A statutory trust fund: cannot be withheld to force deficiency correction.

Supplemental Instruction (SI)

An architect's written clarification or interpretation of the contract documents that involves no change in contract price or time. Used to respond to RFIs or resolve field ambiguities.

Change Order (CO)

A formal agreement signed by owner, architect, and contractor confirming a change in scope, contract price, or contract time. All three parties must sign before work proceeds under a CO.

Change Directive (CD)

An owner-authorized instruction directing the contractor to proceed with a change before price is agreed. Used when urgency does not allow time for a change order. Price is negotiated or determined after the work is done.

Request for Information (RFI)

The contractor's formal written request for clarification of the contract documents. The architect must respond to every RFI regardless of content.

Letter of Assurance

A jurisdiction-specific document (required in British Columbia, Alberta, and Nova Scotia) in which the architect certifies general conformance of the building with the building code and construction documents at time of occupancy permit application.

Non-conforming work

Work that does not meet the requirements of the contract documents. The architect may reject it under CCDC 2 GC 2.2.11 and direct the contractor to correct it at the contractor's expense.

Post-occupancy evaluation (POE)

An additional-service assessment of the building's performance against the owner's program requirements, conducted 6 to 12 months after occupancy. Covers both functional and technical performance.

Commissioning

The systematic process of verifying that building systems operate as designed, documented, and demonstrated to the owner's staff. Often provided by an independent commissioning agent as a service separate from the architect's general review obligations.

Conditional occupancy

An occupancy permit issued when the building is safe but a portion of the work remains incomplete per the construction documents. Additional review is required before full unconditional occupancy is granted.

Shop drawing

A detailed fabrication drawing, schedule, diagram, or product data prepared by the contractor, trade, or supplier to show how work will be constructed. Submitted to the architect for review of conformance with design intent; does not relieve the contractor of responsibility for accuracy or meeting contract requirements.

How Construction Phase: Field Functions questions are asked on the ExAC

Questions in this topic test both knowledge (definitions, clause numbers, document names) and judgment (what to do next, who is responsible, which document is correct for this situation). The table below shows the most common formats and typical question stems for each sub-category.

Common ExAC traps in Construction Phase: Field Functions questions

1. Architect as supervisor. Distractors often position the architect as directing the contractor on how to do the work. The correct answer always keeps the architect in the review-and-report role and the contractor in the execute-and-control role.
2. Confusing Substantial Performance with Ready-for-Takeover. Substantial Performance is one item on the Ready-for-Takeover checklist. Questions that ask "when does the warranty start?" expect the answer "Ready-for-Takeover," not "Substantial Performance."
3. Misusing holdback. A question may present a scenario where the owner wants to withhold holdback to pressure the contractor into fixing deficiencies. This is not permitted under lien legislation; holdback is a trust fund. The correct answer involves the bonding and insurance provisions.
4. Stopping work for safety. If the architect observes an unsafe condition, the architect notifies the owner and contractor in writing. The architect does not order work to stop; that is the contractor's or owner's authority. An exception arises only in the most extreme life-safety situations, and even then the architect notifies, not commands.
5. Fixed visit schedule. "The architect must visit the site every week" is always a distractor. The correct standard is intervals appropriate to the stage of construction, at the architect's professional judgment.
6. Change Order vs. Change Directive. A Change Order requires all three signatures before work proceeds. A Change Directive allows work to proceed before price is agreed. Questions that ask which document is appropriate when the owner needs urgent work done before a cost is settled are asking for a CD, not a CO.

Tips for Intern Architects studying Construction Phase: Field Functions

• Know the CCDC 2 clause numbers. GC 2.2.5 (no control over means/methods), GC 5.4 (20-day Substantial Performance review), GC 5.5 (5-day final payment), GC 9.2 (hazardous substances), GC 12.3 (one-year warranty). These come up repeatedly.
• Read a real field review report. If your office uses a standard template, read it against CHOP Chapter 6.6's checklist. You will internalize the required content faster from a real example than from memorizing a list.
• Map the takeover sequence. Write out the sequence from first site visit to Final Certificate on a single sheet of paper. The ExAC frequently tests your ability to order these steps, so rehearse it until it is automatic.
• Practise the distinction questions. "Substantial Performance vs. Total Performance," "SI vs. CO vs. CD," "general review vs. continuous inspection." These distinctions appear in multiple question formats. If you can define both sides of each pair without notes, you will get these questions right.
• Review your jurisdiction's lien legislation. The ExAC tests general principles, but holdback percentages and lien claim periods vary by province. Knowing that the rules vary by province is as important as knowing the CCDC 2 defaults.
• Connect CHOP to CCDC 2. CHOP tells you what to do; CCDC 2 tells you the contractual consequences. For every procedural step in CHOP, find the corresponding CCDC 2 clause. That connection is what ExAC scenario questions test.

How to study Construction Phase: Field Functions in 15 to 20 hours

1. Hours 1 to 3: Read CCDC 2 GC 2.1, 2.2, and 2.3 in full. Write out the Consultant's authority, role, and inspection rights in your own words. Know the limits.
2. Hours 4 to 6: Read CHOP Chapter 6.6. Map the site visit trigger points and the field review report required content. Practise writing the report structure from memory.
3. Hours 7 to 9: Read CHOP Chapter 6.7. Map the Substantial Performance and Ready-for-Takeover sequence. Add CCDC 2 GC 5.4, 5.5, and 12.3 to the sequence. Know the day counts: 20, 10, 5.
4. Hours 10 to 12: Work through Examitect's ExAC field-functions practice questions. For every question you get wrong, return to the relevant CHOP chapter or CCDC 2 clause before moving on.
5. Hours 13 to 15: Focus on the common traps: supervisor vs. reviewer, Substantial Performance vs. Ready-for-Takeover, CO vs. CD, holdback rules. Drill these with Examitect's scenario-based questions.
6. Hours 16 to 20: Review CHOP Chapter 6.8 (forms), CCDC 2 GC 9.2 (hazardous substances), and your jurisdiction's lien legislation basics. Take a timed mock exam on Section 4 and review every answer.