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A new building product is ready only when its evidence supports the way you plan to use it on your specific project—and the relevant building authority accepts the approval route. Before specifying or buying it, define the use and local requirements, verify that credible evidence covers the exact product and installation, and check manufacturing controls, installer needs, maintenance, and support.
A certificate or successful test is not universal permission to use a product. The local authority having jurisdiction (AHJ)—often a building official or consent authority—decides what evidence it will accept for the project. The checks below help you surface gaps before they become design, approval, or procurement problems.
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What does “ready for a project” mean?
Readiness is not a general label a supplier can attach to a product. It is a conclusion about a particular product, use, location, and set of requirements. A product may have credible evidence for one application but not another: its intended function, position in the building, connection to other materials, exposure, building type, occupancy, and safety implications can all affect what must be demonstrated.
Start with the project’s jurisdiction and the code requirements adopted there. Then identify the evidence route the AHJ will consider. In Canada, for example, the Canadian Construction Materials Centre (CCMC) explains that authorities may consider testing, engineering analysis, certification, or other technical means; acceptance may be project-specific and is subject to the authority’s agreement. CCMC’s guidance on construction product approvals in Canada is useful context, not a substitute for asking the authority responsible for your project.
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The practical test is whether the complete chain holds together: the requirement is clear, the evidence addresses it, the evidence covers the proposed configuration and conditions, production will match the evaluated product, and the project team can install and maintain it as required. A gap in any link is a reason to ask more questions—not necessarily proof the product cannot be used.
How do I know if a new building product is code compliant?
First identify the requirements that apply to the product in its actual project use; then confirm that the evidence addresses those requirements and that the AHJ accepts the proposed route. “Code compliant” should not be treated as a blanket claim unless its scope, jurisdiction, and conditions are clear.
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- Identify the project context. Confirm the jurisdiction, adopted code edition, building and occupancy type, and any life-safety implications. These details help determine the applicable requirements; do not assume a product’s approval for another building or location carries over.
- Ask what route the AHJ will accept. If the product does not follow a familiar prescriptive path, or its evidence is incomplete, consult the AHJ and design professionals before procurement. An authority may consider different types of technical evidence depending on the product and project risk.
- Map every material claim to evidence. For each claim essential to the project, identify the relevant requirement and the document that supports it. If the supplier cannot make that connection clearly, treat the claim as unverified for your application.
- Check scope and conditions. Verify that the evidence covers the exact product identity, configuration, intended use, and installation, and that its conditions and limits are compatible with the design.
- Confirm delivery and lifecycle arrangements. Check how production consistency is controlled, who may install the product, what oversight is needed, and what inspection or maintenance affects ongoing performance.
New Zealand Building Performance advises that product evidence should be comprehensive, credible, relevant, and controlled. Its product information and evidence guidance describes forms of support including technical opinions, independent assessments, laboratory testing, and evidence of in-service history. The specific evidentiary route and legal requirements vary by jurisdiction; use local guidance and the AHJ’s direction for the project.
What documents should I ask a supplier for?
Ask for a package that lets the project team trace each important performance claim to evidence, installation conditions, and product identity—not just a brochure or a certificate image.
- Current technical information: Product identification, intended uses, relevant performance claims, design or installation instructions, handling and storage information where relevant, and stated limitations.
- Test evidence: The method or standard used, its version, the tested product configuration, test conditions, and the report itself where available. A summary may not give enough detail to check whether the result applies to your project.
- Independent assessment or certification: The complete report or certificate and its scope, including criteria assessed, applicable provisions, covered models or configurations, conditions of use, and any ongoing conformity checks.
- Engineering analysis or technical opinion: The question it addresses, assumptions, supporting information, and the professional or organization responsible for the assessment.
- In-service evidence: Where relied on, information about the product and application represented, and why that history is relevant to the proposed use. Past use is not automatically proof that a different configuration or environment will perform the same way.
- Production and installation controls: How the supplier keeps shipped products consistent with the evaluated product, who is qualified or permitted to install it if restrictions apply, and what inspection or oversight is required.
- Maintenance and support information: Required inspection and upkeep, who can perform it, consequences of missed maintenance, and the availability of technical assistance and replacement products.
Ask the supplier to provide a claims-to-evidence table. For example: “The project requires [specific performance or requirement]; the supporting document is [report or assessment]; it covers [model, configuration, use, and conditions]; and the relevant limitation is [condition or exclusion].” This makes missing links visible to the designer and the authority.
Documents also need to be current and controlled. Ask whether a report or certificate has been superseded, whether the product has changed since evaluation, and how the supplier identifies the version or configuration represented by each document. The evidence must be traceable to the product that will actually arrive on site.
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How should I read a test report, certificate, or evaluation report?
Read the scope and conditions, not just the title or logo. Different documents do different jobs: a test report records results under a defined method and conditions; certification may add an ongoing conformity process; an evaluation report organizes findings and conditions for code review.
| Document | What it can tell you | What to verify |
|---|---|---|
| Test report | How a specified sample or configuration performed under a stated method and test conditions. | Method and version; tested product identity and configuration; test conditions; reported result; and relevance to the proposed use and local requirements. |
| Certification | That a defined product or process was assessed against stated criteria. Depending on the scheme, it may include checks on continuing conformity. | Exactly what is certified, which criteria apply, whether production controls or surveillance are included, and what happens when the product or manufacturing changes. |
| Evaluation report | A technical assessment organized for review against specified provisions or acceptance criteria. | Product identity, criteria or code provisions, installation details, conditions and limitations, report scope, and whether the AHJ recognizes it for this project. |
These routes are not interchangeable by default. A test result does not itself establish that the product satisfies every project requirement; certification does not necessarily cover every application; and an evaluation report is not universal permission. The authority decides whether the particular evidence is acceptable and whether additional evidence is needed.
ICC Evaluation Service describes its reports as identifying the product, evaluation criteria, installation guidance, and conditions of use. Its Evaluation Reports Program is one example of a technical evaluation report. Before relying on a report, check that its scope covers the proposed product and installation and confirm its relevance and recognition with the project’s AHJ.
For any assessment, ask who did the work and whether that laboratory, assessor, or certification body is competent for the specific product and method. Independence and competence matter, but a reputable organization’s name does not cure a mismatch between the report and your project.
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Will an overseas test report be accepted locally?
Not automatically. A result may be technically sound yet fail to answer the local compliance question if the method, units, configuration, test conditions, climate, or code criteria differ from those relevant to the project.
Ask the supplier to explain, in writing, how the overseas result relates to the local requirement and environment. The explanation should identify the test method and conditions, the product configuration tested, any differences from the proposed installation, and why those differences do or do not affect the conclusion. Ask the AHJ whether it considers the explanation and report adequate before treating them as an approval path.
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New Zealand Building Performance explicitly advises making the relevance of overseas test results to local code and environmental conditions clear to the consent authority. Its guidance on deciding on product assurance is jurisdiction-specific; other places may set different rules. Do not assume one country’s assessment is automatically recognized elsewhere.
What should I check about manufacturing and installation?
Evidence applies only if the product supplied and installed remains within the configuration that was evaluated. A report on one model, component combination, or installation method may not cover a modified version, a different substrate, or a substituted assembly.
Ask the supplier to explain how it maintains production consistency with the evaluated product. Find out how product versions are identified, how manufacturing changes are handled, and whether certification or another assurance route includes checks on ongoing conformity. The UK government’s Construction Products Reform White Paper distinguishes testing as an activity from certification, which can provide ongoing assurance through testing, factory production control, and evaluation. The details depend on the specific certification scheme; check what the actual certificate includes.
Then compare the installation instructions with the project documents. Confirm the required sequence, interfaces, fixings or other specified components, substrate, environmental conditions, and any inspection points stated in the product information or report. Do not infer a requirement that the documents do not state; ask the supplier and design professional to resolve unclear or conflicting instructions before work starts.
For complex products or systems, installer competence or oversight may be part of readiness. Determine who may install the product, what training or supervision is specified, and who will verify that the installed work follows the evaluated instructions. New Zealand Building Performance’s guidance on products and Building Code compliance notes that controls or oversight over who can install a product may be needed in some cases.
How do I assess maintenance, durability, and supplier support?
Ask what the owner or operator must do after installation to preserve the performance the project relies on. A product may have installation evidence and still require inspection or maintenance that affects its durability or ongoing performance.
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- What inspection or maintenance is required, and at what intervals?
- Who is able to perform it, and what information must be recorded?
- What is the stated consequence if maintenance is delayed or omitted?
- Are handling, storage, or environmental limits relevant before installation?
- Can the supplier provide technical support and replacement products when needed?
Get product-specific answers in writing. The cited guidance supports checking product information and maintenance, but does not establish universal warranty periods or service-life terms. Do not infer a service life or warranty from a test result, a certification logo, or a supplier’s general marketing language; obtain and review the terms that apply to the actual product.
How do I compare possible assurance routes?
Compare routes by what they establish for this project, not by how impressive a document looks. The table below is a review framework, not a ranking: one route may need to be combined with other evidence, and the AHJ determines what it will accept.
| Question | What a satisfactory answer should make clear |
|---|---|
| Is it relevant in this jurisdiction? | Which adopted requirements it addresses and whether the AHJ recognizes the assessor or report for the project. |
| Does it cover the exact scope? | The product, configuration, intended use, installation, and performance criteria assessed. |
| Is the evidence credible? | Who produced or assessed it, their competence for the work, and the basis for the conclusion. |
| Does assurance continue into production? | Whether factory controls, surveillance, or other checks help keep shipped products consistent with the evaluated product. |
| Are installation and maintenance understood? | Any stated conditions, installer qualifications or oversight, support needs, inspection, and maintenance duties. |
| What questions remain? | Unresolved life-safety, durability, or in-service issues and any additional information the AHJ requires. |
New Zealand’s product-assurance guidance discusses evidence types and relevance, while CCMC’s Canadian guidance notes that authorities may consider different technical means. Together, they reinforce a practical point: evidence needs to fit the question, and no single document should be assumed to settle every requirement.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What are the warning signs that a product is not ready yet?
A warning sign is usually a gap to resolve, rather than an automatic verdict on the product. Pause specification or procurement when the supplier cannot show what was evaluated, where the evidence applies, or how the proposed installation meets its conditions.
- Broad claims without a requirement or report: “Meets code” or “approved” is not enough unless the supplier identifies the jurisdiction, criteria, scope, and evidence.
- A certificate with unclear coverage: The covered model, use, criteria, or conditions are missing, or the certificate does not match the product being proposed.
- A test summary without enough context: The method, version, configuration, or test conditions are not available for review.
- Evidence from another application or environment: The supplier has not explained why it transfers to this project or local requirements.
- Uncontrolled changes or substitutions: It is unclear whether the product has changed since evaluation or whether a proposed substitute is covered.
- Unclear installation or upkeep: Instructions, installer requirements, inspection, or maintenance duties are absent or conflict with the design.
- No agreed approval route: The design team and AHJ have not resolved what evidence is needed, particularly where the product does not follow a familiar prescriptive route.
Resolve a documentation gap by asking for the missing information, not by assuming the product is either safe or unacceptable. Where the outstanding question affects compliance or safety, bring it to the relevant design professional and AHJ before relying on the product.
What should I do before specifying or ordering?
Use a short project record to make the decision traceable and reduce late surprises. Keep the evidence and the authority’s response with the project documents.
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- Define the application: Product function, location, assembly, exposure, and essential performance claims.
- List applicable requirements: Jurisdiction, adopted code edition, building and occupancy context, and relevant life-safety considerations.
- Build the evidence map: For each claim, record the requirement, source document, report date or version if stated, product configuration covered, and conditions or limits.
- Review the gaps: Identify questions on local relevance, report scope, production consistency, installation, maintenance, or support.
- Consult the project team and AHJ: Ask whether the proposed evidence route is acceptable and whether additional information or conditions are needed.
- Make procurement conditional on scope: Specify the exact product identity and configuration represented by the accepted evidence, and establish how substitutions or changes will be reviewed.
- Plan installation and operation: Put required instructions, oversight, inspections, and maintenance responsibilities in the project handover information.
Do not wait until the product is on site to discover that a report excludes the project’s configuration or that the authority expects a different kind of evidence. Early agreement cannot guarantee approval, but it lets the team identify what remains to be demonstrated before schedule and procurement decisions depend on the product.
Frequently Asked Questions
Can a building department reject a product that has a certificate?
Yes. A certificate may cover a different use, configuration, or set of criteria, and it may not address every requirement for the project. The authority responsible for the project decides whether the submitted evidence is acceptable.
What if a supplier will not provide the full test report?
Ask what information can be shared so the design team and authority can verify the method, scope, conditions, and product identity. If the available summary does not establish relevance, ask the AHJ what additional evidence it requires before specifying the product.
Does a product need to be new to the market to count as innovative?
Not necessarily. For approval purposes, the important issue is whether the product follows a recognized compliance route or needs a different form of evidence for its proposed use. The AHJ can clarify which route applies to the project.
Can I substitute a similar product after approval?
Do not assume similarity is enough. A substitution can change the configuration or conditions covered by the evidence, so have the design team check the proposed replacement and confirm with the AHJ whether the approval basis still applies.

