LOS ANGELES — A city councilman here plans to introduce a bill later this month that would require retailers to install electronic cart containment systems that prevent shopping carts from leaving a store's property if the store loses a certain number of carts during a specified period. A spokeswoman for Councilman Tony Cardenas said the proposal will be similar to a policy in neighboring Glendale, Calif., that requires code enforcement officers to count carts at local stores and, if more than five carts are missing on any given day, requires the stores to devise a way to keep them on the property — prompting most companies to install electronic systems that cause cart wheels to lock if someone tries to remove them from the parking lot. According to the spokeswoman, Çardenas decided to pursue the legislation after 5,300 loose carts were collected over a six-month period in his council district in the San Fernando Valley.

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