Trade associations can perform valuable and pro-competitive functions. They may represent an industry, develop technical or safety standards, provide training, collect market information, commission research and facilitate engagement with government, regulators and other stakeholders. However, because trade associations bring together businesses that may compete as sellers, purchasers, bidders or employers, they can also create competition law risk. The association may itself adopt an anti-competitive decision, or its meetings, working groups, surveys and informal events may facilitate agreements, concerted practices or exchanges of competitively sensitive information between members. Trade association participation is not inherently suspect. The central requirement is that members continue to determine their prices, output, customers, bids, employment terms and other commercial strategy independently, and that any cooperation is limited to what is necessary for a legitimate association activity. This Practice Note explains the legal principles governing trade association activity, the conduct most likely to create risk and the practical controls that associations and their members should use. It should be read alongside the organisation's wider competition law policies and any specific legal