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All lavatory faucets for public use shall be provided with an automatic safety water mixing device to prevent sudden unanticipated changes in water temperature or excessive water temperatures. The automatic safety water mixing device shall be either thermostatic, pressure balance or combination controlled, in accordance with ANSI/ASSE 1016 or 1017, ASSE-1066 adjusted to a maximum setting of 115°F (46°C) at the time of installation.