Blue Sky laws are established under which of the following?

Blue Sky laws are established under the Uniform Securities Act. This set of laws was created to provide a standardized regulatory framework for the sale of securities and to protect investors against fraud. Individual states were empowered to enact their own laws to regulate the offering and sale of securities within their jurisdictions, leading to what are commonly known as Blue Sky laws.

These laws are crucial for ensuring that securities are registered and that full disclosure is provided to potential investors, thereby creating a level of transparency in the marketplace that is fundamental for maintaining investor confidence. The Uniform Securities Act serves as a model for states, promoting consistency while allowing for some variations to cater to local market conditions. This focus on state-level regulation under the Uniform Securities Act is what distinguishes it in the context of the question.