Rescheduling proponents argue that cannabis does not meet the Controlled Substances Act's strict criteria for placement in Schedule I and so the government is required by law to permit medical use or to remove the drug from federal control altogether. The US government, on the other hand, maintains that cannabis is dangerous enough to merit Schedule I status. The dispute is based on differing views on both how the Act should be interpreted and what kinds of scientific evidence are most relevant to the rescheduling decision.