Please see below guideline from Andy and attached files for background (especially Catalyst Handling.doc).
Please hold all plans for catalyst sieving/top-up/replacement until we comply with the standards.
I will schedule a call to discuss, we will need to install a facility similar to a DFB. Proper management of change is a must. Note that this is not a critical item for Go/No-Go, but we’ll need to develop the capability.