The U.S. Supreme Court in 2005 affirmed the constitutionality of the so-called beef check-off program, one of the 18 generic promotion programs for agricultural products that are now active nationally. Supporters view check-offs as economically beneficial self-help activities that need minimal government involvement or taxpayer funding. Producers, handlers, and/or importers are required to pay an assessment, usually deducted from revenue at time of sale - thus the name check-off. However, some farmers contend they are being "taxed" for advertising and related activities they would not underwrite voluntarily. The Supreme Court's decision to uphold the beef check-off is considered significant for the future of the other programs, although the Court left open the possibility of additional challenges.