employee characteristics, or nature of place of employment that, in the Secretary’s reasonable determination, are useful for designing an effective and practicable program of standards, regulations, and enforcement that maximizes the health and safety of employees. (3) Protective programs (A) In general In addition to measures specified by this Act, the Secretary may develop a worker heat protection standard with such additional requirements that, in the Secretary’s reasonable judgment, are necessary or appropriate to achieve the purposes of this Act. Such measures may include the following: (i) Engineering controls Requirements to eliminate hazardous levels of heat stress through engineering controls, such as isolation or shielding of employees from sources of heat, exhaust ventilation, insulation of hot surfaces, or climate-control technologies, as well as technology-based standards that encourage the development of such controls. (ii) Administrative controls Requirements to limit exposure to hazardous levels of heat stress by adjustment of work procedures, work schedules, or other work practices. (iii) Personal protective equipment Requirements to provide, at the employer’s expense, personal protective equipment such as water-cooled garments, air-cooled garments, heat-reflective clothing, and cooling vests. (iv) Health-related protocols Requirements to conduct medical symptom monitoring, emergency response protocols, medical removal protection, or training of employees and supervisors in recognition of symptoms of heat-related illness and appropriate responses. (v) Training requirements Requirements to train employees and supervisors in topics reasonable or necessary to achieve the implementation of the requirements of a standard or the purposes of this Act, including— (I) training of employees in signs and symptoms of heat-related illness, emergency response procedures, and their rights under this Act