$BTC more than 24 states, including Utah, Texas, and Florida, are actively exploring the possibility of integrating Bitcoin into state financial reserves, proposing relevant projects that allow investment in cryptocurrencies at a ratio not exceeding 10% of state funds. However, proposals in 5 states, such as Pennsylvania, have been rejected due to concerns about risks, highlighting local legislative worries regarding volatility, energy consumption, and illegal use. The interaction between federal and state legislation contributes to the formation of a multi-tiered regulatory system for cryptocurrencies in the United States, but also reveals the complexity of policy coordination.