

To Assure.
Tetrahedron International Professional Services Pty Ltd (TIPS)

AS/NZS 5131 CC3 Certification
Our AS/NZS 5131 CC3 Certification Consultation service is designed to support fabricators and engineering firms in achieving compliance with the highest category of structural steel fabrication requirements under the Australian/New Zealand Standard. Our expert team provides end-to-end guidance through the certification process — from gap assessments and quality system implementation to welding compliance, traceability, and inspection readiness. Whether you're pursuing initial certification or upgrading from a lower compliance class, we ensure your processes, personnel, and documentation meet the rigorous expectations of AS/NZS 5131 and the National Structural Steelwork Compliance Scheme (NSSCS).
Stage 1: Initial Consultation & Gap Analysis
We begin by assessing your current systems, procedures, and personnel competencies against the requirements of AS/NZS 5131 and the National Structural Steelwork Compliance Scheme (NSSCS). This includes evaluating quality management systems (QMS), welding coordination, inspection procedures, and traceability protocols. The gap analysis identifies areas that require improvement or development to meet CC3 criteria.

CC3 requires stringent welding compliance, including certified Welding Procedure Specifications (WPS), qualified welders, and appointment of a Responsible Welding Coordinator (RWC). We assist in the development and qualification of welding procedures in accordance with ISO 15614, and ensure your welding personnel meet AS/NZS ISO 9606 standards.

Stage 4: Inspection, Testing, and Documentation
Stage 5: Internal Audit & Readiness Review
Before submitting for certification, we conduct a comprehensive internal audit to verify your readiness. This mock audit simulates the official NSSCS audit, allowing you to address any final issues and gain confidence in your compliance.

Stage 6: Third-Party Audit and Certification
Stage 7: Ongoing Support & Maintenance
After certification, we offer ongoing support for surveillance audits, system updates, and continuous improvement to help you maintain compliance and improve operational performance on CC3 projects.

We begin by assessing your current systems, procedures, and personnel competencies against the requirements of AS/NZS 5131 and the National Structural Steelwork Compliance Scheme (NSSCS). This includes evaluating quality management systems (QMS), welding coordination, inspection procedures, and traceability protocols. The gap analysis identifies areas that require improvement or development to meet CC3 criteria.

Non-destructive testing (NDT), visual inspections, and documentation controls are critical for CC3 projects. We help establish inspection test plans (ITPs), material traceability logs, and welding quality records. This ensures your fabrication activities are fully traceable and compliant with audit requirements.

Once your systems are in place and personnel are fully trained and qualified, we coordinate with an approved third-party certifying body for the formal CC3 audit. We provide support throughout the audit process to help you achieve successful certification with minimal disruption.

Stage 2: Implementation of Quality Systems
Stage 3: Welding Compliance and Procedure Development
Why Choosing Us

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Specialised Knowledge in AS/NZS 5131 & CC3
We understand the technical and compliance requirements specific to the Construction Category 3 (CC3) level.
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Proven Certification Success
Our track record includes helping steel fabricators achieve CC3 certification efficiently and confidently.
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Comprehensive Gap Analysis & Planning
We identify compliance gaps and create a clear action plan to meet all CC3 obligations under AS/NZS 5131.
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Support with Quality and Welding Systems
We assist in developing and aligning your Quality Management and Welding Control systems with certification needs.
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Strong Industry & Regulatory Insight
With deep experience in steel fabrication standards and third-party auditing expectations, we guide you through every step.
