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The Puerto Rico Public Service Commission is one of Puerto Rico's oldest regulatory bodies whose jurisdiction has changed over the years.
The PSC currently regulates the retail sale of natural gas, used primarily for cooking in Puerto Rico. It also regulates trucking and "público" cars, or jitneys, among other regulatory functions.
Adolfo L. Monserrate Anselmi served at one time as Associate Commissioner along with Rafael Hernández Colón.
The multi-member PSC was headed by Roberto Maldonado until December 31, 2008. Governor Luis Fortuño appointed María T. Fullana as chairwoman of the PSC on January 4, 2009.