When looking for a dog trainer, it's important to consider their certifications as they reflect their knowledge and commitment to professional standards. Here are some respected certifications a dog trainer should have:

1. **Certified Professional Dog Trainer (CPDT)**: Offered by the Certification Council for Professional Dog Trainers, this certification requires trainers to pass a comprehensive exam and demonstrate a minimum number of hours of hands-on training experience.

2. **Karen Pryor Academy (KPA) Certification**: This academy provides a program that focuses on positive reinforcement training methods. Graduates are well-versed in modern training techniques and behavior modification.

3. **Association of Professional Dog Trainers (APDT)**: While APDT itself does not certify trainers, they offer resources and support for trainers pursuing certification and continuing education.

4. **International Association of Animal Behavior Consultants (IAABC)**: This organization offers certifications for trainers who have expertise in behavior modification and training techniques.

5. **Fear Free Certification**: This certification focuses on reducing fear, anxiety, and stress in pets during training and handling, making it a great addition for trainers who are committed to humane practices.

6. **American Kennel Club (AKC) Certifications**: The AKC offers various certifications and titles for trainers who work with specific breeds or in areas like obedience and agility.

When selecting a dog trainer, also consider their experience, training philosophy, and reviews from other clients. A good trainer should be open to discussing their methods and be willing to adapt to your dog's individual needs.

This answer doesn't make sense or isn't related to the question. Mark it as a probable hallucination of the AI model.

Topics covered in this question:

Dog Behavior Positive Reinforcement Dog Training Professional Dog Trainer Dog Trainer Certifications Dog Training Techniques