The subsidy rates for beef, milk, poultry and eggs are differentiated by the various feeding systems and other technological criteria, with more technologically advanced production eligible for higher rates (Table 2.4). The afeimats are responsible for developing and approving lists of eligible producers. Producers submit monthly information on the volumes sold and must provide documents to show proof of sales. The eligibility condition was that the products be delivered for processing. These output payments were budgeted and paid for one year only, and ceased thereafter.