Senator Ron Wyden urged Senate leaders John Thune and Charles Schumer on July 7, 2026, to preserve Section 604 of the CLARITY Act, the Blockchain Regulatory Certainty Act. The provision would shield non-custodial software authors and open-source contributors from being treated as money transmitters solely for publishing code, making developer liability a central issue in the crypto market-structure debate.
The request matters because the final legislative language will determine whether neutral protocol builders face criminal or regulatory exposure for software they do not control after release. The debate now pits legal certainty for developers against law-enforcement concerns over illicit finance and online exploitation.
🚨NEW: Senator @RonWyden (D-OR) is asking Senate leaders to preserve the Blockchain Regulatory Certainty Act, as passed by the Senate Banking Committee, in any version of the Clarity Act brought to the floor.
It comes amid uncertainty over whether certain key law enforcement… pic.twitter.com/ABLSJ1KlJm
— Eleanor Terrett (@EleanorTerrett) July 8, 2026
Wyden Frames BRCA as Protection for Neutral Code
Wyden argued that developers who create software allowing users to manage their own digital assets should not be classified as money transmitters when they do not control customer funds. His position draws a legal line between publishing non-custodial tools and operating financial infrastructure.
The BRCA language includes an exception intended to preserve liability when a developer is proven to be actively transferring or using proceeds from illicit activity. Supporters say that carve-out keeps criminal conduct within reach while protecting routine open-source development.
Wyden’s letter invoked recent prosecutions involving Tornado Cash developers Roman Storm and Alexey Pertsev as examples of the stakes for software authors. For supporters, those cases show how unclear liability rules can chill open-source work and push technical talent offshore.
Section 604 has support from Wyden, Senator Cynthia Lummis, industry groups such as the Blockchain Association and the DeFi Education Fund, firms including Paradigm, and more than 60 founders and executives. Their shared argument is that non-custodial development needs statutory certainty to remain viable in the United States.
Critics Warn of AML and Enforcement Gaps
Opposition has come from anti-trafficking organizations and major law-enforcement associations, including prosecutors, police chiefs and sheriffs. They warn that the provision could make it harder to investigate human trafficking, child exploitation, sanctions evasion and other crimes, placing public-safety concerns directly against developer-protection goals.
The Bank Policy Institute has also raised concerns about anti-money-laundering coverage and ancillary asset treatment. Its criticism centers on whether the language could create loopholes that conflict with existing AML obligations for financial intermediaries.
The CLARITY Act, including Section 604, cleared the Senate Banking Committee on June 9, 2026, but final passage remains uncertain. The Senate calendar is tightening ahead of the August recess and November midterm elections, leaving limited time to resolve disputes over crypto market-structure language.
Negotiators still face unresolved issues beyond developer liability, including ethics rules for officials holding digital assets and complex stablecoin yield provisions. Those debates could determine whether Section 604 survives intact or is narrowed during Senate negotiations.
For developers and protocol maintainers, the immediate implication is legal rather than technical. A clear statutory exemption would reduce compliance overhead, lower criminal-liability risk and influence where teams choose to build, host infrastructure and maintain governance operations.
For law enforcement, the provision would shift the standard for treating developers as intermediaries. Investigators could still pursue demonstrable criminal behavior, but they would face a higher bar when the activity is limited to publishing or maintaining non-custodial software.
The final language will shape open-source development across DeFi, wallets and protocol infrastructure. If retained, Section 604 could anchor a U.S. policy distinction between neutral software authors and actors that actually control or move user funds.
