The document discusses 5 US states that are open to cryptocurrency regulations: Colorado, Ohio, Texas, California, and Wyoming. Colorado was the first to pass legislation exempting certain digital assets from securities regulations. Ohio has advanced in allowing taxes to be paid in cryptocurrency and proposing blockchain use for records. Texas is business friendly towards crypto mining but almost banned anonymous cryptocurrency use. California regulates cryptocurrency as legal payment and is home to major crypto companies. Wyoming leads by exempting utility tokens from securities laws and allowing banks to custody digital assets.