The potential rescheduling of marijuana by the Drug Enforcement Administration (DEA) could set off a chain reaction of changes not only on a federal level but also across individual states due to "trigger laws". Depending on how states respond to federal rescheduling, this could result in automatic state-level rescheduling, require further action from the state legislature or an appropriate state authority, or leave scheduling decisions unaffected. The impact of the changes could cover politics, criminal justice, and medical marijuana regulations, possibly sparking interstate cannabis commerce and changes in law enforcement practices.