Which of the following is a notable exception to the three-tier system in many states?

A brewpub that serves its own beer represents a notable exception to the three-tier system because it operates differently from traditional breweries and distributors. In the three-tier system, the flow of alcohol is typically segmented into three distinct tiers: producers (such as breweries), distributors (wholesalers), and retailers (like bars and restaurants). Each tier plays a specific role in the distribution and sale of alcoholic beverages.

However, brewpubs combine the functions of production and retailing by brewing their own beer and serving it directly to consumers on-site. This model allows brewpubs to bypass some of the regulations and distribution requirements imposed on traditional breweries and wholesalers, enabling them to serve their products directly in their establishments.

This direct-to-consumer approach not only facilitates a unique dining experience but also supports local craft beer culture, allowing breweries to cultivate a loyal customer base while reducing distribution costs and complexity. Other options, like breweries selling directly to consumers, may also be exceptions but can vary greatly by state laws and regulations. Nonetheless, the brewpub model is particularly significant within this context, illustrating a unique blend of retail and production that the three-tier system typically does not accommodate.