Which organization publishes a listing of acceptable excess and surplus lines insurers that many states adopt?

The correct choice is the National Association of Insurance Commissioners (NAIC). This organization is responsible for facilitating the regulation of the insurance industry across different states in the U.S. One of its key roles includes the development and publication of a listing of acceptable excess and surplus lines insurers. This list is crucial as it helps guide insurers and agents on which carriers to use for writing coverage that may not be available through standard markets.

The NAIC sets standards and provides resources that many states adopt to ensure uniformity and reliability in the insurance marketplace, particularly when it comes to more specialized risk coverage like surplus lines. This practice helps protect consumers and maintain the integrity of the insurance industry by ensuring that only reputable insurers are used for non-standard risk coverage.

Other organizations mentioned have different focuses: the SC Director of Insurance would be specific to South Carolina's regulatory framework, the Insurance Information Institute primarily provides education and information about insurance, and the National Association of Insurance Brokers focuses on advocating for insurance brokers and agents rather than establishing lists of approved insurers.