From a POLB news release:

The San Pedro Bay ports of Long Beach and Los Angeles will phase out the option to collect a “Container Dwell Fee” on Jan. 24, 2023.

Since the program was announced on Oct. 25, 2021, the two ports have seen a combined decline of 92% in aging cargo on the docks. While the executive directors of both ports have had the authority from their respective harbor commissions to implement the fee, it was never activated because cargo owners were able to clear their long-dwelling cargo off terminals.

“This fee was conceived as an incentive to ease congestion, keeping imported goods flowing to stores across America,” said Port of Long Beach Executive Director Mario Cordero. “Measured by this standard, we can all appreciate the policy’s success, and best of all, the fee was never implemented. We thank cargo owners and terminal operators for working with us to make operations more efficient, and of course dockworkers for their dedicated labor.”

https://polb.com/port-info/news-and-press/ports-container-dwell-fee-program-to-end-jan-24-12-16-2022/