Chapter 12 — INTERIOR ENVIRONMENT — 2025 California Building Code (Title 24, Part 2)

User notes: About this chapter: Chapter 12 provides minimum provisions for the interior of buildings—the occupied environment. Ventilation, lighting, and space heating are directly regulated in this chapter and in conjunction with the California Mechanical Code and the California Energy Code . Minimum room size, maximum room-to-room sound transmission and classroom acoustics are set for educational occupancies. ICC code development note: Code change proposals to sections preceded by the designation [P] will be considered by a code development committee meting during the 2024 (Group A) Code…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy

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1224.13 whenever applicable. ¶

1224.13 whenever applicable. 1225.5.1.2 NURSING SERVICE SPACE. 1225.5.1.2.1 Patient bedrooms. Patients shall be accommodated only in rooms with the following minimum floor area, exclu- sive of toilet rooms, wardrobes, entrance vestibules and fixed furnishings or equipment. 1. Single-patient rooms: 110 square feet (10.21 m [2] ). 2. Multi-patient rooms: 80 square feet (7.43 m [2] ) per bed. 1225.5.1.2.2 Bed clearance. The dimensions and arrangement shall be such that there is a minimum distance of 3 feet (914 mm) between the sides and foot of the beds and any wall or any other fixed…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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1225.6 OPTIONAL SERVICES. ¶

1225.6 OPTIONAL SERVICES. 1225.6.1 General. Waiting areas and access to optional services for outpatients shall accommodate the following: 1225.6.1.1 Outpatient waiting rooms. Waiting rooms for outpatients shall provide a seating area and space for wheelchairs, and have public corridor access to or provisions for, public toilet room(s), drinking fountain and telephone. Note: One waiting area may serve more than one department or service. 1225.6.1.2 Circulation. If x-ray examinations are to be performed on outpatients, outpatient access to the radiological spaces shall not traverse a nursing…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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1224.3 for the definition of a handwashing station. ¶

1224.3 for the definition of a handwashing station. 1226.9.2.2 Medication station. Refer to Section 1226.4.13.2. 1226.9.2.3 Clean utility room. Refer to Section 1226.4.13.3. 1226.9.2.4 Soiled workroom or soiled linen holding. Refer to Section 1226.4.13.4. 1226.9.2.5 Housekeeping room. Provide a housekeeping room that is immediately accessible to, and for the exclusive use of, the unit. This room shall have a minimum floor area of 15 square feet (1.4 m [2] ) and shall include the following: 1. Service sink or floor receptor 2. Supply storage 3. Housekeeping equipment storage 1226.9.2.6…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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1226.10 REHABILITATION CLINICS. ¶

1226.10 REHABILITATION CLINICS. Rehabilitation clinics and outpatient clinical services of a hospital providing services equivalent to a rehabilitation clinic shall comply with Sections 1226.4.3 through 1226.4.8 and the provisions of this section. SUPPORT AREAS FOR THERAPY SERVICES. 1226.10.1 Support area for patients. 1226.10.1.1 Patient toilet room(s). Refer to Section 1226.4.14.1. 1226.10.2 General support. 1226.10.2.1 Garbage. Refer to Section 1226.4.9. 1226.10.2.2 Housekeeping. Refer to Section 1224.4.15. 1226.10.2.3 Areas for off-site laundry services. Refer to Section 1226.4.15.1.…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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1226.11 ALTERNATIVE BIRTHING CLINICS. ¶

1226.11 ALTERNATIVE BIRTHING CLINICS. Alternative birthing clinics and outpatient clinical services of a hospital providing services equivalent to alternative birthing clinics shall comply with Sections 1226.4.3 through 1226.4.8 and the provisions of this section: 1226.11.1 Birthing service space. 1226.11.1.1 Birthing room. A birthing room shall have a minimum clear floor area of 200 square feet (18.58 square meters), including the newborn care area. A birthing room shall have a minimum clear dimension of 12 feet (3658 mm). The maximum number of beds per room shall be one. 1226.11.1.2…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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1226.12 PSYCHOLOGY CLINICS. ¶

1226.12 PSYCHOLOGY CLINICS. Psychology clinics and outpatient clinical services of a hospital providing services equivalent to a psychology clinic shall comply with Sections 1226.4.3 through 1226.4.8 and the provisions of this section. Psychology clinics shall provide at least an interview room, consulting room and group therapy room. 1226.12.1 Public and administrative area. 1226.12.1.1 Public area. 1226.12.1.1.1 Reception. Refer to Section 1226.4.16.1.1. 1226.12.1.1.2 Outpatient waiting room. Refer to Section 1224.4.5. 1226.12.1.1.3 Public toilet(s). Refer to Section 1224.4.5. 1226.12.1.1.4…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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