Final answer:
A nurse moving from Ohio to Missouri can obtain the Nurse Practice Act from the Missouri State Board of Nursing, which regulates nursing practice in the state and establishes professional standards.
Step-by-step explanation:
The Nurse Practice Act for any state can be obtained through the specific state's Board of Nursing. For a nurse moving from Ohio to Missouri, the relevant Nurse Practice Act would be issued by the Missouri State Board of Nursing. This entity is responsible for regulating the practice of nursing within Missouri, establishing standards for professional conduct, and ensuring that healthcare services provided to the public adhere to state mandates.