This video discusses the mandatory implementation and use of Part A2.2(4), Performance-Based Design Brief. It also provides an example of how to apply A2.2 (4) when using certain CodeMark certificates.


A2.2 . Now A2.2 is a part of the NCC that exists today, but comes into effect on the 1st of July. A2.2 is that part of the governing requirements that was introduced with the 2019 Amendment 1 edition and is about the performance-based design brief process.

his is the four-step process which sets out how a performance solution should be carried out. Step one is where all the people who should have a say in the performance solution get together and discuss the proposed solution and how it should be demonstrated if it complies or not. And then the work happens, that's step two. And then the results are analysed in step three. Performance is or isn't demonstrated and the report is written in step four.

This isn't new. We've been encouraging practitioners to do this for some time, but on first July of 2021, it becomes mandatory under the NCC. We've been receiving some questions about A2.2 to do with CodeMark.

How does A2.2 apply to the use of a CodeMark certificate? Because sometimes, not always, but sometimes a CodeMark certificate will attest that a product complies with the performance requirement. When it does that, if you use the product that it certifies, then you are using a performance solution. And so you have to use A2.2 even though the certification body who issued the certificate has done the heavy lifting in terms of analysis.

So what would applying A2.2 look like when you're using a CodeMark certificate? People have been asking us that and I will step you through that process now. So first, the Performance Based Design Brief. A brief is a document, so it needs to document the relevant BCA provisions. This includes the performance requirement as well as any deemed to satisfy requirements that will not need to be complied with on account of the performance solution.

It's a good idea to share this amongst the relevant stakeholders. That could include the owner, the designer, the builder, or anyone else who is relevant to the process. So next is analysis. For normal performance solution, this step is going about doing the work of figuring out if the proposed solution works. But like I said, the certification body has already done the heavy lifting when it comes to your analysis. But in doing that analysis, the certification body hasn't had in mind, your specific project or your specific building.

Instead they've made assumptions about how the product is going to be used. So those assumptions are expressed as conditions or limitations on the CodeMark certificate. So your job in this step is to complete that analysis by ensuring that the proposed use of your project falls within the limitations and conditions of the certification. That's the analysis step.

Step three is evaluation. And in this step, it's necessary to check if the certificate is valid. The certificate might expire or could even be withdrawn before it's expiry date. So Jas-anz who run this scheme, have a register of all current CodeMark certificates. You can check if a certificate is valid using that register. And that's their website. Step four is the final report.

For regular performance solutions, especially complex ones, the final report could be quite detailed. Because it's going to contain all the analysis that occurred in step two. But where most of the technical analysis sits behind a CodeMark certificate, then the report would likely be quite brief. Because it only needs to document the relevant BCA provisions.

Explain how the proposed use of the product is within the limitations of the certificate and verify that the certificate is valid. Now remember this isn't the case for all Code Marks certificates. Most of the time the CodeMarks certificate will attest compliance with adeemed to satisfy provision that would make it adeemed to satisfy solution.

But when a CodeMark certificate attest compliance with the performance requirement, then that's a performance solution and it's mandatory to carry out A2.2 as of first July, 2021. There's information on our website about A2.2 including an article stepping through what I've just described in this video. So be sure to check that out if you're using a CodeMark certificate that attests compliance directly to a performance requirement.