DoD Assessment Methodology
The DoD Assessment Methodology is the scoring rulebook for NIST SP 800-171 self-assessments under DFARS 252.204-7019. Documented in Version 1.2.1 (June 24, 2020), it produces a score from -203 (nothing implemented) to 110 (everything implemented). The score goes into SPRS. Contracting officers look at it. Misrepresenting it is how companies end up in False Claims Act cases.
- glossary
- How the Scoring Works
How the Scoring Works
You start at 110. Each of the 110 NIST SP 800-171 requirements is worth 1, 3, or 5 points depending on security impact. If a requirement is fully implemented, you keep its points. If it is not implemented, you lose those points. Partial implementation gets partial credit in a limited set of cases. The math can push you below zero, down to -203, if enough high-value controls are missing.
Why Deductions Are 1, 3, or 5
The values are not a continuous range. Controls with the largest security impact deduct 5 points (MFA for privileged accounts, FIPS-validated cryptography for CUI). Medium-impact controls deduct 3. Hygiene-level controls deduct 1. This means a single missing MFA implementation hits harder than several missing awareness training activities.
Confidence Levels
- Basic (Self): The contractor runs the assessment. This is the default under DFARS 252.204-7019.
- Medium (DIBCAC paper review): DIBCAC reviews your documentation and interviews staff. No on-site verification.
- High (DIBCAC on-site): DIBCAC visits and verifies implementation technically.
Submitting to SPRS
The score goes into SPRS with three fields: the numeric score (-203 to 110), the date of the assessment, and the target date for reaching 110 if you are not there yet. Scores expire after three years, so plan a reassessment cadence. Authorized company representatives access SPRS through PIEE (Procurement Integrated Enterprise Environment).
DoDAM vs CMMC
Both evaluate the same 110 NIST 800-171 practices. DoDAM produces a number. CMMC produces a pass/fail certification. You need DoDAM-compliant scores in SPRS under DFARS 252.204-7019 regardless of CMMC status. Once CMMC is fully rolled out, a new contract with 252.204-7021 will also require the certification.