Insurance companies are subject to the laws of regulations of the state within which the policy is so. Most States offer to the assured or the client a period of time typically 30 days to review the contract and make sure it is suitable for their needs. If it's not then the insured or client can physically actually reject the policy and thereby terminate coverage
The free look period is a window typically 10 to 30 days, depending on your state during which you can review your new policy and cancel it for a full refund if it doesn’t meet your needs. It’s a risk-free opportunity to make sure the coverage is right for you.