Rev. 3 readiness in ten minutes: delta or rebuild?

Part 1 — Do you know what binds you?

• Contract inventory exists. You can list every active contract and agreement with a CUI or 800-171 obligation — and which revision each one incorporates.
• Flow-downs are captured. Prime flow-downs are in the inventory too, as received — not as assumed.
• Customer signals are tracked. You know which customers and agencies have referenced Rev. 3, ODPs, or new assessment expectations in the last year.

Part 2 — Will your current program survive a crosswalk?

• Your SSP maps to requirements, not prose. Each requirement has an addressable implementation statement — the unit a crosswalk converts.
• Evidence is objective-level. Artifacts are indexed to 800-171A assessment objectives, so they can be re-indexed to Rev. 3 objectives instead of recollected.
• Your POA&M is current. Open items have owners, dates, and status — because they transfer into the Rev. 3 disposition analysis as-is.

Part 3 — The Rev. 3 deltas

• Planning exists as a process. Security planning is a working rhythm — not a document written once for the SSP.
• Acquisition has a security gate. New systems and services get a security evaluation before purchase — the substance of the System & Services Acquisition family.
• Suppliers are risk-managed. You evaluate and monitor the vendors inside your boundary — the substance of Supply Chain Risk Management.
• You know what an ODP is. Someone in your organization can explain Organization-Defined Parameters and who sets their values for each customer.
• Review frequencies are recorded. Access reviews, log reviews, and revalidations have defined, documented cadences — the raw material of an ODP register.
• Dual-baseline is on your roadmap. If you serve both DoD (Rev. 2 today) and early-moving civilian processes, you have a plan for operating both views from one implementation.