registration number requirements

SC‑87 introduces stricter rules for how Certification Authorities record legal identity data in TLS certificates, requiring the serialNumber field to exactly match a verified Registration Number or, when unavailable, a standardized Date of Formation by mid‑2027. The ballot outlines clear handling for Government and Non‑Commercial Entities and mandates ongoing validation of acceptable formats, closing longstanding gaps in identity vetting. For relying parties, this means clearer, more consistent certificate identity fields and reduced risk of misrepresentation across jurisdictions. CAs must update tooling and RA processes ahead of enforcement, but the result is stronger governance and improved trust signals on the public internet.