Ok, please provide the proper references then. Thanks
2016 CA Plumbing Code
https://up.codes/viewer/california/.../plumbing-fixtures-and-fixture-fittings#422.0
422.1 Fixture Count
Plumbing fixtures shall be provided for the type of building occupancy and in the minimum number shown in Table 422.1. [OSHPD 1, 2, 3 & 4] and Tables 4-2 and Table 4-3
The total occupant load and occupancy classification shall be determined in accordance with Occupant Load Factor Table A and the California Building Code. Occupancy classification not shown in Table 422.1 shall be considered separately by the Authority Having Jurisdiction.
The minimum number of fixtures shall be calculated at 50 percent male and 50 percent female based on the total occupant load. Where information submitted indicates a difference in distribution of the sexes such information shall be used in order to determine the number of fixtures for each sex.
Once the occupancy load and occupancy are determined, Table 422.1 shall be applied to determine the minimum number of plumbing fixtures required.
Where applying the fixture ratios in Table 422.1 results in fractional numbers, such numbers shall be rounded to the next whole number.
For multiple occupancies, fractional numbers shall be first summed and then rounded to the next whole number.
422.2 Separate Facilities
Separate toilet facilities shall be provided for each sex.
Exceptions:
1. Residential installations.
2. In occupancies with a total occupant load of 10 or less, including customers and employees, one toilet facility, designed for use by no more than one person at a time, shall be permitted for use by both sexes.
3. In business and mercantile occupancies with a total occupant load of 50 or less including customers and employees, one toilet facility, designed for use by no more than one person at a time, shall be permitted for use by both sexes.
422.4 Toilet Facilities Serving Employees and Customers [Not adopted for OSHPD 1, 2, 3 & 4]
Each building or structure shall be provided with toilet facilities for employees and customers.
Requirements for customers and employees shall be permitted to be met with a single set of restrooms accessible to both groups.
Required toilet facilities for employees and customers located in shopping malls or centers shall be permitted to be met by providing a centrally located toilet facility accessible to several stores.
The maximum travel distance from entry to any store to the toilet facility shall not exceed 300 feet.
Required toilet facilities for employees and customers in other than shopping malls or centers shall have a maximum travel distance not to exceed 500 feet.