Is a church active or not?

How do you judge if a church is active or not from the outside? I have the statistics from PCUSA to look at. I can also look at websites for the churches. PCUSA does not have all of the websites, some are out of date, some PCUSA does not know about. They rely on the session clerk's to update their own info.

Membership numbers are being duplicated from previous years by somebody, but who? Clerks, Presbyteries, PCUSA. The problem is not just churches that have left for EPC/NW but churches that have not filed the statistics.

I proofed some of the ones that the formulas found by checking google and concluded that they are active because there website shows them to be a NCD. So I added that as a criteria for active.