Final answer:
The National Association of Veterinary Technicians in America (NAVTA) is responsible for creating the veterinary technician code of ethics, the oath, and the portion of the Model Practice Act related to veterinary technicians.
Step-by-step explanation:
The organization responsible for writing the veterinary technician code of ethics, the veterinary technician oath, and the veterinary technician portion of the Model Practice Act is the National Association of Veterinary Technicians in America (NAVTA). NAVTA is a professional society that represents and promotes the profession of Veterinary Technology and Veterinary Nursing. They provide guidance and standards for the ethical conduct expected from veterinary technicians, encapsulating their commitment to compassionate animal care and professional integrity.