It sounds like one for a legal compliance team if your company has one.  It wouldn't surprise me that if the product has already been made, then it only needed to be compliant when it was made.  But I am not a lawyer.

Do you only need to meet the receiver blocking test in your application?

it is not the only thing that has changed https://www.tuvsud.com/en-us/resource-centre/stories/etsi-en-300-328-v2-2-2-overview lists the full set.

As this standard applies to things like wifi, bluetooth and Zigbee modules the co-existance problem is very real - which is why the tests have been changed.

If you want to declare conformity by meeting ETSI 300 328, then you have very little choice I'm afraid. A unit that complied comfortably with the old standard is unlikely to fail but a poorly designed one may need extra filters between antenna and RX in.

Mike

Thanks very much for the replies - I'm aware that there are more changes than receiver blocking, but this is the most significant. Fortunately, I have received an excellent response from Panasonic. It turns out they had done the tests prior to obsoleting the product, so we have a solution. Happy Friday!

depends when it was placed on the market, as I understand it. If it was before 13 June 2017 and it was certified to 1999/5/EC, then  "member states shall not impede making the product available on the market" (I have paraphrased slightly - but it's in the directive under "Transposition". Unfortunately, the module was more recent.

so you have a module that meets the new standard after all, and all you need is some slight of hand with the paperwork to show it meets the new test requirements.
That is lucky.

Mike.