In the United States, insurance is regulated by the states under the McCarran-Ferguson Act, with "periodic proposals for federal intervention", and a nonprofit coalition of state insurance agencies called the National Association of Insurance Commissioners works to harmonize the country's different laws and regulations.[46] The National Conference of Insurance Legislators (NCOIL) also works to harmonize the different state laws.[47]
Humana is a great option for consumers in some parts of the United States, as it's only available in 22 states. If you happen to live in one of those states and are over the age of 45, you're likely going to see lower premiums than with other insurance companies. In our tests we looked at policies for single non-smokers in five different places. We found the premium rates were lower across the board than many other companies we tested, particularly for seniors. 
One way to do this is to call the insurance company and see what the hold time is and what the service is like when you wait to speak to a representative about a general inquiry. If the hold time is 3 hours and they don’t seem like an accommodating group, you’re probably not going to want to deal with them after you just lost your house and file a claim.
You’ll notice that none of that liability coverage pays for your car or injuries, nor for any injuries your passengers sustain if you cause a wreck. This is why many people — particularly those whose car isn’t yet paid off — want “full coverage” car insurance. This isn’t actually a type of coverage, but instead typically refers to policies that include liability coverage, plus comprehensive and collision coverages.
In determining premiums and premium rate structures, insurers consider quantifiable factors, including location, credit scores, gender, occupation, marital status, and education level. However, the use of such factors is often considered to be unfair or unlawfully discriminatory, and the reaction against this practice has in some instances led to political disputes about the ways in which insurers determine premiums and regulatory intervention to limit the factors used.
NerdWallet compared quotes from these insurers in ZIP codes across the country. Rates are for policies that include liability, collision, comprehensive, and uninsured/underinsured motorist coverages, as well as any other coverage required in each state. Our “good driver” profile is a 40-year-old with no moving violations and credit in the “good” tier.