Work Inspection Procedure (WIP) – Complete Construction QA/QC Guide

Ensuring quality in construction is not just a contractual obligation—it’s the foundation of successful project delivery. A structured Work Inspection Procedure (WIP) helps verify that every material, activity, and finished work meets the approved standards, specifications, and engineering requirements.
This procedure outlines how inspections and tests shall be carried out, recorded, approved, and monitored throughout the project lifecycle.

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1. Purpose of the Procedure

The primary objective of this Work Inspection Procedure is to establish a systematic approach for inspecting and testing construction materials, products, and workmanship.
This ensures:

• All work is executed under controlled conditions
• Inspection/Test results are documented
• Installed materials meet contractual and specification requirements
• Compliance with acceptance criteria is achieved before progressing to the next stage

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2. Scope of Work

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3. References

• Project Technical Specifications
• Applicable Indian Standards
• Approved Inspection & Test Plans (ITPs)
• Drawings and relevant project documents

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4. Definitions & Acronyms

• QHSE – Quality, Health, Safety & Environment
• QA – Quality Assurance
• QC – Quality Control
• QM – Quality Manager
• ITP – Inspection and Test Plan
• COM – Company Abbreviation

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5. Organization & Responsibilities

• The Project Manager is responsible for overall quality at the site.
• QC Engineers/Inspectors perform inspections as per trade requirements.
• The Main Contractor is accountable for maintaining approved QA plans, ITPs, and Method Statements.
• The Inspection Party / QA Division reviews and approves contractor submittals before work begins.

The aim is to maintain consistent quality, compliance with project specifications, and adherence to good industry practices.

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6. Overview of ITP Implementation

Inspection & Test Plans (ITPs) are the backbone of site quality control.
Each ITP:

• Identifies materials/work requiring inspection
• Defines Hold Points, Witness Points, Review Points, and Surveillance Points
• Specifies acceptance criteria and standards
• Indicates responsible inspecting authorities
• Lists verification records and documentation

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7. Standard Structure of an ITP

Every ITP typically includes the following stages:

1. Documentation Review
2. Material Sample Approval
3. Incoming Material Inspection
4. Pre-Work Inspection
5. Work-in-Progress Inspection
6. Post-Work Inspection
7. Testing / Commissioning (where applicable)

For each stage, the ITP defines:

• Activity description
• Method of inspection
• Type of inspection (H/W/R/S)
• Frequency
• Approval authority
• Acceptance criteria
• Verification records

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8. Preparation of ITPs

The company’s QHSE division develops standard ITPs for all trades—Structural, Architectural, MEP, and Interiors.
These ITPs are then customized to suit the specific project.

Steps in Preparation

1. Contract Document Review
   • QM identifies discrepancies, missing info, material/workmanship standards
   • Clarifications obtained from Client/Designer
2. ITP List & Scope Definition
   • Scope is divided into trade-wise ITPs
   • Master list created
3. Drafting the ITPs
   • Standard formats adapted to project requirements
   • Checklists and test forms prepared
   • Inputs obtained from site engineers & supervisors
   • Specialized works (e.g., waterproofing, lifts, HVAC) coordinated with contractor/suppliers
4. Register Preparation
   • Material submittal registers
   • WIR/MIR registers
   • Test & inspection checklists
5. Review & Approval
   • ITPs submitted to Head of HSEQ for approval

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Sign Up below to download the full customizable Work Inspection Procedure (Word format) — including:

a) ITP Master List (with all necessary construction activity lists included)
b) Witness Inspection Request
c) Material (Sample) Approval Request
d) Material Inspection Request
e) Corresponding Logs