Office of the Comptroller of the Currency - Charters and regulates national banks. Chartering Handbook (PDF)

Office of Thrift Supervision - Charters and regulates savings and loans and savings banks. Limited to 20% commercial lending, half to small business loans. Chartering Handbook (PDF)

Federal Deposit Insurance Corporation - Insures state and federal bank deposits.

California Department of Financial Institutions - Charters California state banks.