(d) The department, in collaboration with the department of elementary and secondary education, shall assist public schools in the implementation of the nutritional Standard relative to the sale or provision of competitive foods or beverages in public schools. The assistance may include:

(i) additional training in nutrition and diet available for school food service directors;

(ii) an assessment of a school’s capacity, resources and equipment to prepare and provide recommended foods; and

(iii) recommendations on the duration of school lunch periods.