Lucid Act of 2015
Makes eligible for federal-aid highway project grants a state whose law legalizes the possession or use of marijuana with or without medical justification only if that state:
Exempts those states from specified administrative penalties.
Revises the terms "driving while intoxicated" and "driving under the influence" to accord with this Act. Subjects repeat offenders to minimum civil and criminal penalties for driving a motor vehicle while impaired by marijuana in those states.
Directs the Administrator of the National Highway Traffic Safety Administration to: