The Food Safety and Inspection Service of USDA lists all the steps here: http://www.fsis.usda.gov/PDF/Guidelines_for_Obtaining_Federal_Grant_of_Inspection.pdf
The Niche Meat Processor Assistance Network explains those steps and suggests a more practical order for them:
http://www.extension.org/pages/How_to_apply_for_Meat_and_Poultry_Inspection

