The Bank elected the three-year phase-in period under the regulatory capital rules, which allow a phase-in of the Day 1 CECL transition adjustment to the regulatory capital at 25% per year over a three-year transition period. ABOUT SOUTHERN CALIFORNIA BANCORP AND BANK OF SOUTHERN CALIFORNIA, N.A. Southern California Bancorp BCAL is a registered bank holding company headquartered in San Diego, California. Bank of Southern California, N.A., a national banking association chartered under the laws of the United States (the "Bank") and regulated by the Office of Comptroller of the Currency, is a wholly owned subsidiary of Southern California Bancorp. Established in 2001 and headquartered in San Diego, California, the Bank offers a range of financial products and services to individuals, professionals, and small- to medium-sized businesses through its 13 branch offices serving Orange, Los Angeles, Riverside, San Diego, and Ventura counties, as well as the Inland Empire.