Chapter 4: Division of Industrial Safety Subchapter 6: Elevator Safety Orders (Sections 3000 - 3146) Group 3: New Elevator Installations (Sections 3120.0 - 3139) Article 20.: Hoistways, Hoistway Enclosures, and Related Construction for Electric Elevators (Sections 3120.0 - 3120.12) Section 3120.11: Hoistway-Door Locking Devices, Car Door or Gate Electric Contacts, Hoistway Access Switches, and Elevator Parking Devices.
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