607.1 is a general requirement, 419.5 is a specific requirement for lavatories. 102.1 where a general requirement and a specific requirement are in conflict the specific requirement shall be applicable.
Agree with Andrew. 419.5 is specific to public handwashing lavatories, which are permitted to be provided with either cold water or tempered water.
Agree with Andrew. 419.5 is specific to public handwashing lavatories, which are permitted to be provided with either cold water or tempered water.
No, Section 419.5 allows cold or tempered water for public handwashing facilities only, 607.1 requires hot water or tempered water in non-residential occupancies for bathing and washing purposes.
Comment: If we are just talking about public handwashing facilities then 419.5 would apply as the most specific, however for any nonresidential occupancies for bathing or washing purposes hot water or tempered water would be required.