… In the early 2000s, the Federal government of Mexico enacted a series of laws promoting the use of alternative fuels in gasoline, beginning with ethanol … PEMEX: The Ethanol Decision In the early 2000s, the Federal government of Mexico enacted a series of laws promoting the use of alternative fuels in gasoline, beginning with ethanol … Access the Complete Case … In the early 2000s, the Federal government of Mexico enacted a series of laws promoting the use of alternative fuels in gasoline, beginning with ethanol …