I don't know if this is still the case, but I got a free AVID microchip
scanner from the company maybe 10 years ago (still using the original
battery!). They promote checking for microchips in incoming animals.
It reads many (all?) other chips. All I had to do was fill out an
application and provide a copy of my non-profit papers. The chips
themselves are not terribly expensive if you order in bulk.

I have, for many years, routinely microchipped ferrets being adopted
out. It is the same size as a melatonin implant.

Katharine
Florida

[Posted in FML 6580]