Sort of. Tequila can't be called "tequila" unless "IT" is made in the region of Tequila, Mexico. There is no regulation that the spirit made has to be 100% agave. For our edification:
4.34 Tequila
The regional alcoholic beverage obtained by distilling musts, prepared directly and originally from extracted material, in the manufacturing facilities of an Authorized Producer, which must be located in the territory specified in the Declaration, derived from the hearts of tequilana weber blue variety Agave, previously or subsequently hydrolyzed or cooked, and subjected to alcoholic fermentation with cultivated or uncultivated yeasts, wherein said musts may be enhanced and blended together before fermentation with other sugars up to a proportion no greater than 49% of total reducing sugars expressed in units of mass, pursuant to this Official Mexican Standard, and with the understanding that cold mixing is not permitted. Tequila is a liquid that, according to its type, is colorless or colored when aged in oak or Encino oak (holm or holm oak) wood containers, or when mellowed without aging.
Tequila may be enhanced by the addition of sweeteners, coloring, aromatizers and/or flavorings permitted by the Ministry of Health in order to provide or intensify its color, aroma and/or flavor.
Reference to the term “Tequila” in this NOM is understood to apply to the two categories indicated in Chapter 5, except for express references to “100% agave” Tequila.
5.1.2 “Tequila”
The product defined in paragraph one of Section 4.34 of this NOM whose musts may be enhanced and blended together prior to fermentation with other sugars in a proportion not to exceed 49% of total reducing sugars expressed in units of mass. This maximum enhancement of up to 49% of total reducing sugars expressed in units of mass may not be done with sugars from any species of Agave. The 51% of total reducing sugars expressed in units of mass may only be enhanced with tequilana weber blue variety Agave grown in the territory specified in the Declaration.
This product may be bottled in plants not belonging to an authorized producer under strict compliance by the bottler of the conditions set forth in Section 6.5.4.2 and other applicable provisions of this NOM.
IN the event you want to read A LOT of legalese:
http://www.tequila.net/faqs/tequila/...g-tequila.html