Marina Reason and Rakshi Kiran examine FCA consultation paper 25/15, which proposes a brand-new prudential regime for cryptoasset firms, including rules on regulatory capital. This is the first sight of a dedicated prudential framework tailored specifically for crypto firms in the UK. CP25/15 is designed to be read alongside a related FCA consultation paper (CP25/14), which proposes rules and guidance on stablecoin issuance and cryptoasset custody. We unpacked the FCA's proposals on issuing qualifying stablecoins in our recent podcast "Decrypting the FCA stablecoin rules" - https://soundcloud.com/hsfkramer/fsr-podcast-decrypting-the-fca-stablecoin-rules - and we will be considering the FCA's proposals on crypto custody in a future podcast. These FCA consultations followed publication by HM Treasury of near-final draft legislation to create new regulated activities for cryptoassets, and an FCA discussion paper (DP25/1) on regulating cryptoassets, We discussed these developments in our podcast on the Top 3 takeaways from the new crypto rules https://soundcloud.com/hsfkramer/fsr-the-new-uk-crypto-rules and our related blog post https://www.hsfkramer.com/notes/fsrandcorpcrime/2025-posts/uk-cryptoassets-regime-the-draft-rules-have-landed.Speakers: Marina Reason, Partner, Financial Services Regulation, London; Rakshi Kiran, Associate, Financial Services Regulation, London.