1. No person shall use the title of licensed master social worker and engage in the practice of master social work in this state unless the person is licensed as required by the provisions of this section and section 337.644.

2. A licensed master social worker shall be deemed qualified to practice the applications of social work theory, knowledge, methods and ethics and the professional use of self to restore or enhance social, psychosocial, or biopsychosocial functioning of individuals, couples, families, groups, organizations, and communities. “Master social work practice” includes the applications of specialized knowledge and advanced practice skills in the management, information and referral, counseling, supervision, consultation, education, research, advocacy, community organization, and the development, implementation, and administration of policies, programs, and activities. Under supervision as provided in sections 337.600 to 337.689, the practice of master social work may include the practices reserved to clinical social workers or advanced macro social workers for no more than forty-eight consecutive calendar months for the purpose of obtaining licensure under section 337.615 or 337.645. No licensed master social worker shall practice independently the scope of practice reserved for clinical social workers or advanced macro social workers. This shall mean that any practices reserved to licensed clinical social workers or licensed advanced macro social workers performed by a licensed master social worker shall be for the purpose of obtaining licensure under section 337.615 or 337.645 in an employment setting where either a licensed clinical social worker or a licensed advanced macro social worker is a registered supervisor approved by the state committee for social work.