The OCC, state regulators, and chartering

A bank cannot operate in the United States without a charter. The charter is the legal instrument that authorizes the institution to take deposits, make loans, and use the word "bank" in its name. It also determines, by who issues it, which agency will examine the bank — the supervisor is, in U.S. banking, downstream of the charter.

This article describes the chartering choice and what it produces for the depositor: who the supervisor is, what the supervisor does, and how the consumer-facing pieces (complaints, enforcement actions, examinations) flow. For the broader system in which charters sit, see the structure of the U.S. banking system. For the CFPB, which adds a consumer-protection overlay on top of the prudential supervisors, see the CFPB and consumer protection.

What a charter is

A bank charter is a grant of authority — historically a special legislative act, now an administrative authorisation by the chartering agency — to operate as a bank. It is the document under which the bank's articles of association exist; without it, the entity is not a bank. The charter brings with it a defined set of powers (which lines of business the bank may engage in), a defined set of obligations (capital, liquidity, supervisory examination, consumer-protection compliance), and a primary supervisor.

Three federal charters are available for depository institutions: the national-bank charter, the federal savings association charter, and the federal credit-union charter. The national-bank and federal-savings-association charters are issued by the Office of the Comptroller of the Currency; the federal credit-union charter is issued by the National Credit Union Administration. Each state also issues its own bank charter, savings-association charter, and (in most states) credit-union charter, through its banking department, financial regulation department, or department of commerce. The federal and state systems coexist, and an institution may convert between them with regulatory approval.

The Office of the Comptroller of the Currency

The OCC was created by the National Currency Act of 1863, reorganised by the National Bank Act of 1864, and now operates as a bureau of the U.S. Treasury Department. The Comptroller of the Currency, a presidentially appointed official confirmed by the Senate to a five-year term, leads the agency. The OCC is funded by assessments on the institutions it supervises, not by congressional appropriation — a structural feature that gives the agency operational independence and that occasionally surfaces in political contests.

The OCC charters and primarily supervises national banks (including the largest U.S. retail banks) and federal savings associations. As of mid-2026, the OCC supervises roughly 1,000 institutions holding the majority of total banking assets in the U.S. The agency conducts on-site examinations, issues supervisory letters and consent orders, publishes interpretive rulings on the powers of national banks, and processes applications for new charters, mergers, and changes of control.

A consumer's interaction with the OCC is most likely through the agency's HelpWithMyBank consumer assistance group, which handles complaints about national banks and federal savings associations. The CFPB's complaint portal also accepts complaints about these institutions and routes them appropriately; the OCC's process is a parallel channel specific to OCC-supervised entities.

State banking departments

Each state operates its own banking-supervision agency, with structure varying by state. The most prominent are New York's Department of Financial Services, California's Department of Financial Protection and Innovation, Texas's Department of Banking, and the banking departments of Massachusetts, Illinois, and Florida — but every state has one. State agencies charter state banks, examine them, license money transmitters and other non-bank financial services providers, and (in some states) actively pursue consumer-protection cases beyond what federal law requires.

The Conference of State Bank Supervisors (CSBS) coordinates among the state agencies, hosts the Nationwide Multistate Licensing System (used for mortgage and money-transmitter licensing), and represents state regulators in interagency discussions with the federal banking agencies. State agencies hold the senior chartering authority at roughly two-thirds of U.S. banks; the federal banking agencies hold the rest.

The Fed and FDIC as supervisors

A state-chartered bank may elect to become a member of the Federal Reserve System, in which case the Federal Reserve becomes its primary federal supervisor. State banks that decline Fed membership are primarily supervised at the federal level by the FDIC. The state regulator is the primary chartering authority in either case; the choice of federal supervisor follows.

The Federal Reserve is also the consolidated supervisor of every U.S. bank holding company, regardless of the underlying bank's charter — see the Federal Reserve, plainly. The FDIC, beyond its role as primary supervisor of state non-member banks, is the resolution authority for any failed insured bank (and operates the deposit insurance fund). The result is that a national bank's holding company is supervised by the Fed even though the bank itself is supervised by the OCC; a state nonmember bank's holding company is also supervised by the Fed.

The four federal banking agencies coordinate through the Federal Financial Institutions Examination Council, which produces interagency guidance and standardized examination tools. Major consumer-protection rules issued by the CFPB apply to banks regardless of charter; the prudential supervisor enforces them at banks below $10 billion in assets, while the CFPB enforces directly at larger banks.

What examination actually consists of

Supervisory examination is the agency's principal tool for monitoring a bank. The examination assesses capital adequacy, asset quality, management, earnings, liquidity, sensitivity to market risk (the CAMELS rating system), and compliance with applicable law including consumer-protection requirements, BSA/AML compliance, and CRA performance. At the largest banks, examiners are resident on-site continuously; at small banks, examinations occur on a defined cycle, typically every twelve to eighteen months.

The output of an examination is a confidential report of examination shared with the bank's board. Material findings can result in informal supervisory letters, formal enforcement actions (memoranda of understanding, written agreements, consent orders, civil money penalties), or in extreme cases the appointment of the FDIC as receiver. Public-facing outputs include CRA performance evaluations, certain consent orders, and aggregated supervisory information. The non-public components of supervision — the bulk of the work — are deliberately kept confidential to encourage candid bank disclosure to examiners.

The fintech-charter question

For roughly the past decade, the OCC has explored whether and how to charter financial-technology firms — fintech lenders, payments firms, and increasingly stablecoin issuers — under a federal charter that does not require federal deposit insurance. The "special-purpose national bank" charter was the subject of OCC announcements, state attorney-general litigation, and a federal court ruling in 2019 holding that the OCC lacked statutory authority to charter institutions that do not accept deposits. The state of play has shifted multiple times since; live developments include applications for trust-bank and uninsured-national-bank charters by various stablecoin issuers and payments firms. The legal question of whether the OCC can charter a non-depository institution as a bank is unresolved as of this writing; the political question of whether it should is contested.

Why the depositor should care

For most consumer-banking purposes, the identity of the prudential regulator is invisible. Federal consumer-protection laws apply to all federally insured banks and credit unions regardless of charter, and the deposit-insurance limits are the same. The differences matter in three contexts. First, when a consumer files a complaint about a bank, knowing which agency supervises the bank helps route the complaint to the agency most likely to act. Second, the rate at which consumer-protection cases are brought against an institution varies meaningfully across regulators; some state agencies are notably more aggressive than others. Third, when a bank fails, the resolution authority and the political dynamics around the resolution can differ depending on which agencies are involved — a community bank failure handled by the FDIC alone differs from a regional bank failure that has implications for Fed-supervised holding companies and OCC-supervised national-bank subsidiaries.

Limits and uncertainty

The chartering and supervisory regime described here is stable in outline but contested at the edges. The fintech-charter question, the OCC's preemption authority over state consumer-financial law, the post-2023 supervisory rewrites for regional banks, and the periodic political contests over CFPB authority are all live. State agencies have been increasingly active in consumer protection in recent years, particularly in California, New York, and Massachusetts, with implications for institutions that operate nationally. A consumer reading this article in two years should check whether the basic structure remains intact at the boundaries that matter to them; the dual banking system itself is durable, but the relative weight of federal and state authority shifts continuously.