Final answer:
Not all physical activity professionals are required to be licensed; it depends on state regulations and the specific profession. Licenses are government-issued documents that certify an individual's qualifications.
Step-by-step explanation:
The statement that physical activity professionals must always be licensed to provide their services to clients is false. While occupational licenses are used to ensure a certain level of quality and competency within the labor market, not all professions require such licenses.
Occupational licenses, typically issued by government agencies, demonstrate that an individual has undergone specific education or passed necessary exams. Professions such as doctors, nurses, engineers, accountants, and lawyers do require licenses. However, the need for a license among physical activity professionals varies by state and specific job title.