The Japanese Medical Marijuana Association (Japanese: 医療大麻を考える会, Iryō taima o kangaeru kai) was founded in 1999 and seeks to improve access to medical cannabis.

[1][non-primary source needed] Due to the illegality of cannabis in Japan, the organization has investigated leveraging legal medical cannabis in Guam for Japanese patients.

In 2014, JMMA president Koichi Maeda met with Guamanian senator Tina Muna Barnes regarding Guam's medical cannabis program.

Maeda's intent was to develop Guam as a destination for Japanese people seeking cannabis remedies, and for the JMMA to promote cannabis medical tourism to Guam.

However, Maeda stated that Japanese citizens with incurable diseases would be exempt from this law.