The department shall continue to administer and enforce the laws, other than matters covered by Title 7.3 (commencing with Section 66700) of the Government Code, that are within its jurisdiction as they apply directly to solid wastes. The department also, as it relates directly to human health, shall:
(a)
Evaluate and study, as appropriate, the characteristics of solid wastes and methods for their handling and disposal for health protection.
(b)
Render technical assistance to the board, local agencies, and others in the planning and operation of solid waste management programs and resources recovery programs.
(c)
Formulate technical criteria and suggested guidelines for use by state and local agencies in development, planning, implementation, and operation of programs for the local handling of solid waste.
(d)
Stimulate and participate in research and development projects conducted by other public or private agencies, especially those intended to reduce, effectively reuse, or decontaminate waste products.