Insurance Regulation and General Insurance Concepts
The regulatory frame
Insurance regulation in the United States is chiefly state-based: the McCarran-Ferguson Act (1945) left insurance to the states, so each state insurance department licenses insurers and producers, approves policy forms and rates, conducts market-conduct exams, and enforces unfair-trade-practice laws. Producers must hold a state license, be appointed by the insurer, complete continuing education, and handle premium funds as fiduciaries - commingling or rebating commissions is prohibited. Commonly tested violations include twisting (misrepresenting a policy to induce a lapse or replacement), rebating, coercion, misrepresentation, and unfair discrimination. Replacement rules require written notice when a new life policy or annuity replaces existing coverage.
Contract concepts matter as much as rules. Insurance is a contract of adhesion (the insurer drafts it, so ambiguity is read against the insurer), aleatory (values exchanged are unequal), unilateral (only the insurer makes an enforceable promise), and one of utmost good faith. Representations are statements believed true; a material misrepresentation or concealment can void the contract. Insurable interest is the legal right to insure: for life insurance it must exist at application, not at death; for property insurance it must exist at the time of loss.
Traps
Questions often assert that insurable interest must exist at death (wrong for life), that a producer may share commission with a client (rebating), or that the insurer may unilaterally change contract terms (it may not). The state guaranty association protects policyholders after an insolvency but is never a sales argument.
Worked example
Two partners insure each other. The partnership later dissolves; the policies remain valid because insurable interest existed when they were issued.