(viii) Matters relating to formulation of the implementation plan of measures for the maintenance and promotion of the health of workers.
(ix) Matters relating to the establishment of measures for preventing the impairment of workers' health that may be caused by long hours of work.
(x) Matters relating to the establishment of measures for maintaining and improving workers' mental health.
(xi) Matters relating to the measures for preventing the impairment of workers' health among those matters designated through written orders, instructions, recommendations or guidance by the Minister of Health, Labour and Welfare, Director of the Prefectural Labour Bureau, Chief of the Labour Standards Inspection Office, the Labour Standards Inspector or the Expert Officer in the Industrial Health.