Protection of employees; standards for heat illness prevention; Safety and Health Codes Board. Requires the Safety and Health Codes Board (the Board) to adopt regulations designed to protect workers from heat illness, as defined in the bill, during indoor and outdoor work. The bill provides that such regulations shall be enforced by the Board's existing authority. The bill directs the Board, in consultation with the Department of Labor and Industry, to develop and adopt regulations that require employers to implement heat illness prevention plans and to convene an advisory panel to assist in developing such regulations. This bill is identical to SB 288.