19. The Controller shall, in consultation with the Hotel Owners' Association,-(a) ensure that the number of apprentices in a hotel or restaurant does not exceed ten per cent of the employees in any specified trade;(b) fix, with due regard to the salaries paid to the regularly employed staff of the specified trade, the stipend to be paid to an apprentice over and above the cost of his training and determine the duration of his apprenticeship;(c) lay down the age limit, educational qualifications, standards of physical fitness and psychological and mental health of apprentices;(d) direct the programming for training of various categories of employees of hotels and restaurants at a vocational institution recognised by the Government at the various specialised courses run thereat, so that the percentage of qualified trained staff in a hotel or restaurant attains, within a reasonable time, the minimum standard as may be determined by the Controller; and (e) lay down the maximum percentage of untrained staff that may be employed at a hotel or restaurant at any time.