a. questions relating to the occupational health service and the internal safety service, b. questions relating to training, instruction and information activities in the undertaking that are of significance for the working environment, c. plans that require the consent of the Labour Inspection Authority pursuant to section 18-9, d. other plans that may be of material significance for the working environment, such as plans for construction work, purchase of machines, rationalisation, work processes, and preventive safety measures, e. establishment and maintenance of the undertaking's systematic health, environment and safety work, cf. section 3-1, f. health and welfare issues related to working-hour arrangements.