Section 3-143 - Assistant director; powers and dutiesA. The assistant director for the state agricultural laboratory is responsible for the administration, operation and control of the state agricultural laboratory.B. The assistant director shall have all the following qualifications: 1. A master's degree in chemistry or its equivalent in practical experience as determined by the director.2. Experience in agricultural laboratory testing or experience in a control laboratory of an agency that regulates feeds, fertilizers or pesticides.3. Supervisory experience.C. The assistant director shall enforce rules established pursuant to section 3-147: 1. For the voluntary certification of laboratories providing agricultural laboratory services to persons of this state.2. For the mandatory certification of laboratories providing agricultural laboratory services to agencies and departments of this state or its political subdivisions, including those laboratories that are a part of a state agency or department or a political subdivision of this state.3. Prescribing testing, documentation and quality assurance procedures and requirements.D. The assistant director may contract with and assist other divisions and offices in the department and other departments and agencies of the state, local and federal governments in the furtherance of the purposes of this article, including contracting to provide laboratory services.