Engineer to Contract / Independent Certifier (NZS 3910)
Independent Contract Administration & Certification
CM-NZ provides independent Engineer to Contract under 3910:2013 and Independent Certifier services under NZS 3910:2023 and other related New Zealand construction standards.
Construction contracts only work when they are applied fairly, consistently, and in accordance with the contract conditions. As Engineer to Contract / Independent Certifier, we administer the contract, assess claims, issue certificates, and make formal determinations using independent professional judgement.
Our role sits between Principals and Contractors. We protect the integrity of the contract process, ensure decisions are evidence-based and defensible, and maintain clear documentation throughout delivery.
The result is reduced disputes, timely payment certification, and projects that remain focused on completion.
What we provide
Our Engineer to Contract / Independent Certifier services include:
- Assessment and certification of payment claims
- Management of variations and changes
- Review and determination of claims
- Issue of notices and certificates
- Monitoring of contractual compliance
- Record keeping and reporting
- Support through defects liability and project close-out
Recognised industry expertise
CM-NZ Director Paul Belcher is an approved Engineer to Contract / Independent Certifier on the Engineering New Zealand panel now the Society of Construction Contract Practitioners.
Panel members complete a rigorous assessment process and are recognised for their experience, professionalism, and technical capability.
Paul has acted as Engineer to Contract on projects including:
- Commercial multi-level buildings
- Health and medical facilities
- Civil and infrastructure works
- Architectural housing
- Churches and community facilities
- Light commercial buildings and apartments
- Schools and education projects
Experience Across Multiple Sectors
CM-NZ Director Steve Scott is an Engineer to Contract / Independent Certifier and a member of the Society of Construction Contract Practitioners.
Steve has acted as Engineer to Contract / Independent Certifier on projects including:
CM can help at all stages of the construction process:
- Commercial Buildings
- Health and medical facilities
- Industrial Buildings
- Architectural housing
- Multi-unit developments
- Light commercial buildings and apartments
- Schools and education projects
What are Engineers to Contract and Independent Certifiers?
Under the New Zealand Standard 3910:2013 and 3910:2023 Conditions of Contract, the Engineer to Contract plays a central role in managing construction contracts.
The Engineer to Contract role has two main responsibilities:
- Acting as the Principal’s agent for contract administration
- Acting independently when assessing, certifying, and determining claims
The Independent Certifier role has main responsibilities:
- Providing contract decisions and determinations
- Acting independently when assessing, certifying payments, and claims
These roles require technical expertise, contractual knowledge, and the ability to apply professional judgement impartially.
At CM-NZ, we bring clarity and calm to this role. We balance competing interests, resolve issues early, and keep projects focused on delivery.
Contract oversight you can rely on
We provide structured contract management that protects your interests and supports strong governance. Our support includes:
- Design and pre-construction
- Tender and contract preparation
- Contract administration
- Project close-out
- Defects period management
Frequently Asked Questions
An Engineer to Contract manages the construction contract on your behalf. At CM-NZ, our Engineer to Contract services cover contract administration, issuing certificates, and assessing claims in line with NZS 3910:2013
An Independent Certifier makes fair, impartial decisions on payments and contract matters. We provide Independent Certifier services under NZS 3910:2023 so you get clear, evidence-based assessments you can rely on.
We administer the contract, review claims, manage variations, and issue certificates. Our Engineer to Contract services keep the contract running as it should.
We review each claim against the contract and actual site progress. Our Independent Certifier services ensure payments reflect the work completed and agreed entitlements.
We assess all variations against the contract. Our Engineer to Contract services make sure each change is measured, priced, and approved properly.
We make a formal determination based on the contract and supporting information. Our Engineer to Contract and Independent Certifier services focus on clear decisions that help resolve issues early.
Yes. We provide both Engineer to Contract services and Independent Certifier services, depending on your project and contract setup. In both roles, we act independently and consistently.
We provide clear records of instructions, certificates, and decisions. Our Engineer to Contract services support transparency and protect all parties.
We manage final certification and the defects process. Our Engineer to Contract services confirm completion, track outstanding items, and support a smooth close-out.
CM-NZ provides independent Engineer to Contract services under NZS 3910:2013 and Independent Certifier services under NZS 3910:2023. We also work across other related New Zealand construction standards, depending on your project and contract setup.
Engineer to Contract Examples
Engineer to Contract NZS:3910
Clear administration that supports delivery
Well-managed contracts reduce risk and support reliable outcomes.
Our role is to provide independent, consistent administration and certification throughout delivery. If you require an experienced Engineer to Contract under NZS 3910:2013 and or Independent Certifier under NZS 3910:2023, get in touch with our team.

