The program was implemented on May 29, 2010, one day after publication. The program will allow shipments of imported meat and poultry to forego the routine sanitary inspection at the border, and instead to be fully inspected at the destination, a federally inspected establishment (TIF).
http://gain.fas.usda.gov/Recent%20GAIN%20Publications/Mexico%20announces%20Reliable%20Importer%20Program%20for%20Meat%20and%20Poultry_Monterrey%20ATO_Mexico_6-11-2010.pdf