LAB §1031: (a) An employer shall provide an employee with the use of a room or other location for the employee to express milk in private.

(a) An employer shall provide an employee with the use of a room or other location for the employee to express milk in private. The room or location may include the place where the employee normally works if it otherwise meets the requirements of this section. (b) A lactation room or location shall not be a bathroom and shall be in close proximity to the employee’s work area, shielded from view, and free from intrusion while the employee is expressing milk. (c) A lactation room or location shall comply with all of the following requirements: (1) Be safe, clean, and free of hazardous materials, as defined in Section 6382. (2) Contain a surface to place a breast pump and personal items. (3) Contain a place to sit. (4) Have access to electricity or alternative devices, including, but not limited to, extension cords or charging stations, needed to operate an electric or battery-powered breast pump. (d) The employer shall provide access to a sink with running water and a refrigerator suitable for storing milk in close proximity to the employee’s workspace. If a refrigerator cannot be provided, an employer may provide another cooling device suitable for storing milk, such as an employer-provided cooler. (e) Where a multipurpose room is used for lactation, among other uses, the use of the room for lactation shall take precedence over the other uses, but only for the time it is in use for lactation purposes. (f) (1) An employer in a multitenant building or multiemployer worksite may comply with this section by providing a space shared among multiple employers within the building or worksite if the employer cannot provide a lactation location within the employer’s own workspace. (2) Employers or general contractors coordinating a multiemployer worksite shall either provide lactation accommodations or provide a safe and secure location for a subcontractor employer to provide lactation accommodations on the worksite, within two business days, upon written request of any subcontractor employer with an employee that requests an accommodation. (g) An agricultural employer, as defined in Section 1140.4, shall be deemed to be in compliance with this section if the agricultural employer provides an employee wanting to express milk with a private, enclosed, and shaded space, including, but not limited to, an air-conditioned cab of a truck or tractor. (h) An employer may comply with this section by designating a lactation location that is temporary, due to operational, financial, or space limitations. These temporary spaces shall not be a bathroom and shall be in close proximity to the employee’s work area, shielded from view, free from intrusion while the employee is expressing milk, and otherwise compliant with this section. (i) An employer that employs fewer than 50 employees may be exempt from a requirement of this section if it can demonstrate that a requirement would impose an undue hardship by causing the employer significant difficulty or expense when considered in relation to the size, financial resources, nature, or structure of the employer’s business. If that employer can demonstrate that the requirement to provide an employee with the use of a room or other location, other than a bathroom, would impose such undue hardship, the employer shall make reasonable efforts to provide the employee with the use of a room or other location, other than a toilet stall, in close proximity to the employee’s work area, for the employee to express milk in private.