All rulemaking procedures involving marijuana and cannabinoids
are based on the scientific record as it existed in 1988.
Since then fundamental and profound discoveries have radically
altered the way scientists consider and study marijuana and
its constituent parts.
Between 1988 and 1993 a scientific revolution occurred
in the field of marijuana and cannabinoid research. The epochal
event of the scientific revolution was the localization and
characterization of a cannabinoid receptor system in the human
brain in 1990 by Miles Herkenham and his research team at
the National Institute of Mental Health. (1)