FREE Microchipping in Month of MAY

San Diego Humane Society Offers Free Microchipping in month of May. SAN DIEGO — In honor of Chip Your Pet Month, San Diego Humane Society is offering free microchipping at upcoming vaccine clinics in May at the following times and locations: Escondido Campus: 3500 Burnet Drive  Sundays in May from 8-10 a.m. Oceanside Campus: