From the alliance to the operation.

Current reading · 2026

NIST SP 800-82 Rev. 3 remains the final OT security guide. Rev. 4 is an initial public draft, with a comment deadline of 30 November 2026. Do not treat the draft as an adopted standard.

Sources & further reading

NIST SP 800-82 Rev. 3, final
NIST SP 800-82 Rev. 4, initial public draft

Publication milestones

Original publicationReview of Zero Trust: inspiration for OT environments Original articleBuilding an organization to support OT cyber security Original publicationIntroducing the OTCSA

The 2019 launch

Read the founding milestone and primary announcements, with the original programme and publication links.

Continue the review

Choose a practical guide · Read original publications · Contact OTCSA