- In May 1993, Noah joined the psychedelic legalization movement when he learned about ibogaine.
- In April 2008, he organized and presented the first public discussion of the New York City Police Department’s practice of arresting multiple thousands of young men of color for possession of cannabis, in amounts that have been decriminalized since the 1970s, at a rate disproportionate to arrests in the white population.
- In May 2010, he formulated “psychedelic law” as an area of legal study when he created the New Amsterdam Psychedelic Law Blog.
- In October 2012, he explained the DEA’s legal theory for keeping cannabis in Schedule I forever. (This applies to all psychedelic substances.)
- From May to September 2018, he helped guide the Decriminalize Denver campaign in the process of drafting the initiative text.
- In July 2020, he co-founded New Yorkers for Mental Health Alternatives, an advocacy group dedicated to psychedelic law reform in New York.