text: By the mid-1960s the backlash against the use of LSD and its perceived corrosive effects on cultural values resulted in governmental action to restrict the availability of the drug by making use of it illegal. LSD was declared a "Schedule I" substance, legally designating that the drug has a "high potential for abuse" and is without any "currently accepted medical use in treatment." LSD was removed from legal circulation. The United States Drug Enforcement Administration claimed:
  The governors of Nevada and California each signed bills into law on May 30, 1966, that make them the first two American states to outlaw the manufacture, sale, and possession of the drug. The law went into effect immediately in Nevada, and on October 6, 1966, in California. Other U.S. states and many other countries soon followed with similar bans.