12 weeks old and Michael you are correct that have to be current on shots to get license and you have to get them from a vet they do not count if you do-it-yourself I Stand Corrected Its Not 4 It's 12 Weeks Old
Norman Shelter will vaccinate dogs and cats as young as eight weeks.
16 weeks is what we did at my vet clinic, Alameda animal hospital.
Usually pretty young. Our most recent adoption got his when we had him fixed. The city requires it for pet license I think.
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