The UN just reclassified pot, removing it from the same category of drugs like Heroin.Interesting question so I had to check. Here is a good source and the short answer is not unless you're talking medicinal only, not recreational.
The following linked article goes into Sanders plan on how he said if elected he'd de-schedule it within 100 days with executive action. The study claims it's unlawful to do so.
Could the President Legalize Marijuana Through Executive Action?
The title of this post is inspired by Senator Bernie Sanders’s campaign promise “to legalize marijuana in the first 100 days [of his Administration] with executive action.” See here. Other Democratic Presidential hopefuls made similar promises, but since Sanders is the last such candidate...my.vanderbilt.edu
The link said:
{...
“Legalization of the use of cannabis for non-medical purposes is inconsistent with . . . [International] Conventions because the Conventions oblige States parties to limit the use of narcotic drugs exclusively to medical and scientific purposes. . .”
...}
But this is clearly wrong because in no way is pot a narcotic.
There has to be a danger to be considered a narcotic, like the risk of over dosing.
And there is no such danger with pot,.
The days of basing our policies on Reefer Madness are finally coming to an end.
U.N. Reclassifies Cannabis as a Less Dangerous Drug (Published 2020)
A United Nations commission voted to remove marijuana for medical use from a list of the most risky narcotics, such as heroin.
