Members of the CTI TC, Please see this statement of use from CISA. I am forwarding it on behalf of Jackie Eun Ho Park. ---------- Forwarded message --------- CTI TC Chairs and members, As CISAâs OASIS representatives, Marlon and I approve the following Statement of Use:  CISA has successfully implemented STIX Version 2.1 Committee Specification 02, approved 25 January 2021, in accordance with the conformance clauses defined in Section 12 and Section 8, respectively. This implementation did include the verified interoperation of multiple independent implementations.  CISA has successfully implemented TAXII Version 2.1 Committee Specification 01, approved 27 January 2021. The implementation meets the conformance clauses contained in section 8. This implementation did include the interoperation of multiple independent implementations. Regards, Jackie Eun Ho Park, PMP, CISM Systems Analysis NCPS PMO/NSD Cybersecurity and Infrastructure Security Agency Office: 703-235-3063 Cell: 703-209-5916 Email:
JackieEun.Park@cisa.dhs.gov  -- ChetÂEnsign Chief Technical Community Steward OASIS Open    +1 201-341-1393
chet.ensign@oasis-open.org www.oasis-open.org