input: [CRITERIA] Food and beverage purchasing policies [POINTS] 30 [SCORING BASIS] 
output: Institutions earn 1/3 of available points by calculating the percentage of food expenditures that either are grown and processed within 250 miles of the institution or are third-party-certified responsible (certified organic, fair trade, etc). Institutions earn up to 2/3 of available points as a proportion of the highest percentage reported.