«In addition, should your pet become lost or be stolen, the presence of the microchip will help bring them back home to you.» (www2.erie.gov)
One of my clients» indoor cats escaped and turned up four years later at the local animal shelter, and was saved from euthanasia due to the presence of a microchip!» (wagbrag.com)
The ASPCA supports the management of community cat colonies primarily through TNR (Trap / Neuter / Return) and scanning for the presence of a microchip, vaccination, sterilization, ear tipping and, when feasible, microchipping. (aspcapro.org)