Amends the Equitable Restrooms Act. Provides that, notwithstanding any other provision of law, any multiple-occupancy restroom may be identified as an all-gender multiple-occupancy restroom and designated for use by any person of any gender. Requires that an all-gender multiple-occupancy restroom must include specified signage, stall dividers, and partitions for urinals. Provides that any multiple-occupancy restroom may be converted into an all-gender multiple-occupancy restroom. Provides that, if a facility commences construction, or commences alterations exceeding 50% of the facility, and implements an all-gender multiple-occupancy restroom, the all-gender multiple-occupancy restroom must satisfy or include specified requirements. Requires certain newly constructed or previously existing restrooms to be designated as all-gender multiple-occupancy restrooms. Provides that when plumbing fixtures in a facility must meet female-to-male ratio requirements, each individual fixture in an all-gender multiple-occupancy restroom may be counted toward the required number of either female or male toilet stalls. Provides that if a fixture is counted toward the minimum required fixtures for females, that same fixture shall not also be counted toward the minimum required fixtures for males, and if a fixture is counted toward the minimum required fixtures for males, that same fixture shall not also be counted toward the minimum required fixtures for females. Provides that during any inspection of a facility by a health officer, health inspector, or building inspector, the health officer, health inspector, or building inspector may inspect the facility to determine whether it complies with the provisions. Requires the Department of Public Health to adopt rules to implement the provisions. Defines "multiple-occupancy restroom". Contains other provisions. Makes other changes. Effective immediately.