5.6. Certification Maintenance

• Validity period: 12 months; recertification is required at expiration.

• Changes triggering retesting: major driver upgrades, Triton backend refactoring, or major PyTorch upgrades.

• Certification revocation: a CI pass rate below 80% for three consecutive months, or an unresolved critical security vulnerability.

• Waiver management: each waiver must state the technical reason, remediation plan, and expected remediation date; the maximum waiver period is six months.