One way to find the insurance laws of specific states is to consult a compendium of insurance laws, such as NAIC Compendium of State Laws on Insurance, Matthiesen, Wickert & Lehrer's Fundamentals of Insurance Coverage in all 50 States (KF1220.P5M38) or a survey, such as 50-State Surveys -- Insurance, on Westlaw.
The National Conference of State Legislators webpage is a good resource for finding summaries of pending legislation and newly-enacted laws on particular topics, such as insurance. The website includes a page devoted to issues and research on banking and insurance.
The National Association of Insurance Commissioners (NAIC) is the organization of state insurance regulators for the states, Washington DC and U.S. territories. Its publication, NAIC Model Laws, Regulations and Guidelines contains the text of model laws and model regulations, as well as state adoption tables, legislative history and case annotations. It is available on Lexis.
McCarran-Ferguson Act, 15 USC 1011-1015
State Regulation of Insurance, 15 USC 6701, 6711-6717
National Flood Insurance, 42 USC 4000-4129
Federal Crop Insurance, 7 USC 1501 et seq.
Federal Aviation Insurance Program, 49 USC 44302 et seq.
Terrorism Risk Insurance Act, PL 107-297
Employee Retirement Income Security Act, 29 USC 1101 et seq.
Social Security Act, 42 USC 901 et seq.
Health Insurance Portability & Accountability Act, 42 USC 1301 et seq.
Patient Protection & Affordable Care Act, PL 111-148
Federal Insurance Office Act of 2010, PL 111-203, Title V
Nonadmitted & Reinsurance Reform Act of 2010, 15 USC 8201 et seq.
Insurance Business Crimes, 18 USC 1033