This document classifies costs relating to agricultural farms into two categories: 1) On the basis of recognition with the final crop, which includes direct crop costs and common costs, and 2) On the basis of activities covered, which includes costs A-1 through C-2 depending on expenses included. Direct crop costs include items like seeds, fertilizers, pesticides, wages, and land rent. Common costs include maintenance of animals, machinery, farm buildings and structures, and interest. The basis of activities covered further breaks down costs based on cash/credit expenses, rental expenses, imputed interest, rental of owned land, and imputed family wages.