This Department of Labor fact sheet contains the criteria for classification as an intern. It contains the primary beneficiary test which is used to determine if an intern or student is actually an employee under FLSA
This Department of Labor fact sheet contains information about positions that are potentially exempt from minimum wage and overtime as well as other federal regulations as defined by the FLSA
This Department of Labor link provides information regarding Section3(m) of the FLSA. Which outlines the criteria for an employer to count food, housing, etc. towards wages.
Thanks to Shelley Attadgie for helping collect this information