L01-PI: Yes
Rationale
The public PRP rights notice explicitly permits implementation and commercial reuse of the author-owned normative and proposed-normative material under CC BY 4.0, including the selected working drafts. The IPv4/UDP carrier specifications use IETF implementation permissions. Attribution and change notices remain due; a modified implementation is not thereby compatible or approved.
Assessment method
Documentary classification; no new runtime, interoperability or security experiment
Source context
Primary documents, published reports and versioned source review, 2026-10-15
Outstanding qualification
Copyright/use permission only. No patent clearance, trademark permission, interoperability or standards-body acceptance follows; L02 remains Pending.