424.1.3 Lavatory operation without external electrical power.
PC § 424.1.3
Where automatic lavatory faucets connected to an external supply of electrical power are provided in a bathroom or toilet room, at least one lavatory faucet in such bathroom or toilet room shall be capable of normal operation in the absence of an external supply of electrical power for a period of at least two weeks, either through manual operation or built-in battery back-up. Where such automatic lavatory faucets are located in a bathroom or toilet room with a required accessible lavatory, such operational lavatory faucet shall be at such required accessible lavatory. Exception: Section 424.1.3 shall not apply to more than one bathroom or toilet room in a dwelling unit.
