evidence: Principal agricultural activity codes. You must enter on line B of Schedule F (Form 1040) a code that identifies your principal agricultural activity. It is important to use the correct code because this information will identify market segments of the public for IRS Taxpayer Education programs. The U.S. Census Bureau also uses this information for its economic census. See the list of Principal Agricultural Activity Codes on page 2 of Schedule F (Form 1040). [...] The Environmental Quality Incentives Program (EQIP) authorized by the Federal Agriculture Improvement and Reform Act of 1996. [...] CFAP payments are agricultural program payments that you must include in gross income. Report the full amount of your CFAP payments on Schedule F (Form 1040), lines 4a and 4b. Go to USDA.gov for more information.