Every QA/QC Engineer needs to understand not just what each quality document is called, but why it exists, what it requires, and where it fits in the project timeline. Missing or misordering a single document — like starting work before an MAR is approved — can cause rework, delays, or non-conformance issues down the line.
This guide walks through the ten core QA/QC documents used on a construction project, in the order they typically occur, along with the required attachments for each.
Step 1: ITP – Inspection & Test Plan
Purpose: Defines all inspection and testing activities required at each construction stage.
Attachments:
- Project Specifications
- Approved Drawings
- Applicable Codes & Standards
- QA/QC Procedures
Step 2: MAR – Material Approval Request
Purpose: Obtain consultant/client approval before any material is used on site.
Attachments:
- Technical Data Sheet (TDS)
- Material Safety Data Sheet (MSDS)
- Manufacturer Certificates
- Third-Party Test Reports
- Material Samples/Photos
Step 3: MIR – Material Inspection Request
Purpose: Request inspection of delivered materials before they’re installed.
Attachments:
- Approved MAR
- Delivery Note
- Packing List
- Batch Details
- Mill Certificate
Step 4: WIR – Work Inspection Request
Purpose: Request inspection before, during, or after execution of work.
Attachments:
- Approved Drawings
- Inspection & Test Plan (ITP)
- Method Statement
- Site Photos
- Inspection Checklists
- Test Reports
Step 5: Method Statement (MS)
Purpose: Describes how the work will be executed safely and in accordance with specifications.
Attachments:
- Risk Assessment
- Calibration Certificates
- MSDS
- Shop Drawings
- Manpower & Equipment Details
Step 6: NCR – Non-Conformance Report
Purpose: Issued when work or materials do not comply with project requirements.
Attachments:
- Site Photos
- Reference Documents
- Corrective Action Plan
- Consultant Comments
Step 7: SOR – Site Observation Report
Purpose: Records site observations and identifies items requiring rectification.
Attachments:
- Site Photos
- Observation Details
- Rectification Timeline
- Reference Standards
Step 8: IR – Inspection Report
Purpose: Records inspection results and confirms compliance.
Attachments:
- Inspection Checklists
- Test Results
- Approval Signatures
- Site Photos
Step 9: Field & Laboratory Test Reports
Purpose: Verify that materials meet project specifications.
Examples:
- Concrete Test Reports
- Soil Test Reports
- Asphalt Test Reports
- Plate Load Test
- Rebar Test Reports
- Laboratory Accreditation
- Material Sampling Records
- Calibration Records
Step 10: Calibration Certificates
Purpose: Ensure measuring and testing equipment is accurate and valid.
Attachments:
- Calibration Certificate
- Validity Period
- Laboratory Accreditation
Quality Document Flow: How It All Connects
Understanding each document is only half the picture — knowing the correct sequence is what actually prevents delays on site:
MAR → MIR → Method Statement → ITP → WIR → Inspection Report → Test Reports → NCR (if required) → SOR (if required) → Project Handover
This flow ensures materials are approved before delivery, inspected before use, and that all work is properly tested and documented before moving to the next stage — with NCRs and SORs only entering the process when a compliance issue actually arises.
Quick Reference Table
| Step | Document | Core Purpose |
|---|---|---|
| 1 | ITP | Defines inspection/testing stages |
| 2 | MAR | Approves materials before procurement |
| 3 | MIR | Inspects delivered materials |
| 4 | WIR | Inspects work in progress/completed |
| 5 | Method Statement | Defines safe execution method |
| 6 | NCR | Flags non-compliant work/materials |
| 7 | SOR | Records observations needing rectification |
| 8 | IR | Confirms inspection compliance |
| 9 | Test Reports | Verifies material specifications |
| 10 | Calibration Certificates | Validates testing equipment accuracy |
Frequently Asked Questions
Q: What is the correct order of QA/QC documents in construction? A: The typical flow is MAR → MIR → Method Statement → ITP → WIR → Inspection Report → Test Reports → NCR (if needed) → SOR (if needed) → Project Handover.
Q: What is the difference between an NCR and an SOR? A: An NCR (Non-Conformance Report) is issued when work or materials formally fail to meet approved requirements, while an SOR (Site Observation Report) records general observations and minor items needing rectification, which may not always rise to the level of a formal non-conformance.
Q: Why is the MAR required before the MIR? A: The MAR approves that a material is suitable for use on the project. Only after that approval can the material be procured, delivered, and then inspected on-site through the MIR process.
Q: What documents are needed to close out a WIR? A: A WIR typically requires approved drawings, the relevant ITP, the method statement, site photos, inspection checklists, and any applicable test reports.
A well-managed QA/QC document flow isn’t just paperwork — it’s what protects project quality, safety, and schedule from the ground up.