Originally published 2016-03-14. Reviewed and updated by Anything Pawsable on October 4, 2026.
A shelter dog may be a suitable candidate, but one visit cannot predict a working career. Shelter stress and unfamiliar surroundings can change behavior. Use multiple observations, available history and qualified advice.
- Age and development. Consider the likely training period and future workload without treating a narrow age range as a legal qualification.
- Health and task fit. Arrange veterinary assessment, relevant screening and discussion of pain, breathing, movement and the proposed work. Visual inspection alone cannot establish soundness.
- Behavior in context. Ask about behavior outside the kennel, in foster care and over time. Quietness, mess or barking in a shelter does not prove an inherent character trait.
- Comfort and learning. Observe voluntary engagement, response to gentle rewards and recovery after ordinary events. Do not pinch toes, restrain a frightened dog, provoke guarding or introduce unsafe animal encounters to test suitability.
- Support and alternatives. Understand return policies, assessment limits, costs and follow-up. Plan for a dog who does not enjoy or complete service work without forcing it to continue.
Neither an affectionate greeting nor a claimed one-in-a-hundred statistic establishes suitability. A qualified professional can help assess the individual, and the dog should have a worthwhile life whether or not it works as a service dog.
Give your own preparation the same care as the dog’s suitability. Service Dog Standards works alongside the Americans with Disabilities Act (ADA), providing training and behavior standards and education about the human handler’s responsibilities. Review that foundation before choosing a candidate. It gives you and your trainer a shared starting point for planning the time, care and practice a safe, successful partnership needs.