BlackRock has submitted a comment letter to the U.S. Office of the Comptroller of the Currency (OCC), urging the agency to relax proposed limits on stablecoin reserve assets under the Stablecoin Innovation Act. The asset management giant opposes the OCC's proposed 20% cap on tokenized reserve assets, arguing that asset risk should be assessed based on credit quality and liquidity, rather than their basis on distributed ledger technology. BlackRock warns that enforcing this cap could severely restrict the growth of tokenized treasury products like its BUIDL fund, which currently supports over 90% of reserves for Ethena's USDtb and Jupiter's JupUSD. Additionally, BlackRock has requested the OCC to confirm that treasury ETFs meet statutory reserve conditions and suggested including U.S. Treasury floating rate notes with maturities of up to two years in the list of eligible reserve assets.