In plain terms. These are the U.S. Army Corps of Engineers' acquisition instructions, applied on top of the FAR and DFARS (and the Army's AFARS) for Corps engineering and construction contracts.
Who it applies to. Engineering, construction, and services contractors working with the Army Corps of Engineers.
What it requires. Follow the FAR, DFARS, and Army supplement, then Corps-specific instructions. Because the work is Department of Defense work, contracts here generally carry the core DFARS cyber clause 252.204-7012 — protect covered defense information to NIST SP 800-171 and report cyber incidents to DoD within 72 hours — plus CMMC requirements as they phase in.
Why it matters. Even on construction-heavy work, DoD cyber clauses can attach where covered defense information is involved.
Citation. USACE acquisition instructions, the Army Corps of Engineers supplement to the Federal Acquisition Regulation (FAR), codified in the FAR System at Title 48 of the C.F.R.