At what age must dogs be licensed?

In many jurisdictions, including New Mexico, dogs are typically required to be licensed when they are around 3 months old. This age is established as it is generally when puppies have received their initial vaccinations and are considered to be adequately protected from certain diseases. Licensing at this age helps to ensure that pet owners are responsible and that their dogs are properly identified in case they get lost.

While the other options may be associated with various regulations or general ages for other requirements, such as vaccination schedules or maturity, they do not align with the commonly accepted licensing age. Establishing a licensing requirement at 3 months helps municipalities maintain control of pet populations and encourages responsible pet ownership from a young age.