Over 30 crypto industry groups have called on the U.S. Securities and Exchange Commission (SEC) to formalize its guidance on decentralized finance (DeFi) tools. The coalition, led by the DeFi Education Fund, submitted a letter on April 21 advocating for a regulatory framework that would provide clarity and align oversight with blockchain infrastructure. The letter emphasized the need for a principles-based framework to define when activities fall under the 'broker' category, reflecting Commissioner Hester Peirce's push for modernized broker definitions. The industry argues that current regulatory ambiguity threatens blockchain innovation and that formal rulemaking is essential for long-term clarity. The coalition highlighted the importance of distinguishing non-custodial tools as technical infrastructure rather than transaction intermediaries. They warned that without clear rules, blockchain development could be stifled, reducing market access for investors. The letter concluded with a call for a stable, technology-neutral regulatory approach to support DeFi expansion.