Your Past Performance Record Is Being Rewritten. Here’s Who Holds the Pen.
Every contract you perform is a deposit or a withdrawal. The government keeps the ledger, agencies read it before they award the next job, and most contractors never check the balance until it’s too late to fix.
That ledger is about to get sharper teeth. The FY 2026 NDAA and the broader FAR Part 42 overhaul are turning past performance into something more event-driven, more transparent, and more unforgiving than the system you know today. If you run operations, manage contracts, or own a capture pipeline, this is the asset your next pursuit lives or dies on.
CPARS carries more weight than its reputation suggests
The Contractor Performance Assessment Reporting System is the official record of how you perform. Agencies write evaluations at least once a year under FAR Subpart 42.15, and those evaluations feed the Past Performance Information Retrieval System that source selection teams pull from.
Through roughly April 2026, the system runs on adjectival ratings — Exceptional, Very Good, Satisfactory, Marginal, Unsatisfactory — backed by narrative justifications across Quality, Schedule, Cost Control, Management, Regulatory Compliance, and Small Business Subcontracting. A wall of Exceptional and Very Good ratings can carry you past a competitor who underbid you. A single Marginal or Unsatisfactory can knock you out of the running before price ever enters the conversation.
Want proof that evaluators take this seriously? Look at how often contractors go to war over it. Miller & Chevalier’s November 2024 litigation alert documented that early 2024 alone produced 10 protest decisions at the Court of Federal Claims and 38 at GAO touching past performance challenges. That’s roughly one named decision a week turning on someone’s rating. Nobody litigates over a metric that doesn’t decide awards.
What the FY 2026 NDAA actually changes
The NDAA’s CPARS overhaul — Senate Section 867 and House Section 836, with the conference report setting the final shape — orders DoD to rebuild the system around a simple idea: stop grading the essay, start logging the facts.
The new model directs DoD to focus exclusively on verifiable, measurable negative performance events; strip out positive and neutral assessments except where they explain a negative one; and require reporting across a fixed list of categories — defective products, delinquent deliveries, improper markings or rights assertions on technical data, defective pricing, failure to flow down required clauses to subcontractors, false claims or misrepresentations, safety and regulatory non-compliance, and significant cybersecurity breaches. It calls for a scoring mechanism that normalizes those events against contract volume and dollar value, with the DFARS updated within 180 days of enactment.
A parallel FAR Part 42 change, effective April 1, 2026, drops the old rule that past performance information existed only for source selection. Now it flows through the entire lifecycle — option year decisions, award fee calls, ongoing oversight.
Here’s the part that should change how you think. Under the old system, a great narrative was the asset. Under the new one, the absence of negative events is the asset. A clean record across a deep portfolio becomes your competitive marker — and a thin record turns brutal. One strike on one contract is 100% of your track record. A firm carrying 50 contracts with one problem shows 2%. Same mistake, wildly different damage. Volume is armor.
How to manage CPARS like it’s an asset, not an accident
Three habits separate the contractors who build a record from the ones who just receive one.
Engage before the draft lands. Waiting for the evaluation to show up means you’re reacting to the government’s version of events. Set a check-in cadence with your CO and COR — quarterly at a minimum — and surface problems before they harden into findings. Document every corrective action in real time, with dates and evidence attached.
Treat the 14-day window like a deadline that matters, because it does. When a draft evaluation drops, FAR 42.1503 gives you 14 days to file comments, rebuttals, and supporting documentation. A vague, defensive, or late response loses. A focused rebuttal with specific corrections and hard evidence wins. The difference is preparation, not eloquence.
Track everything, all the time. Late deliveries, cost overruns, subcontractor stumbles, quality incidents, cyber events — monitor them continuously, with a 48-hour internal escalation rule when something breaks. The goal is simple: have your mitigation documented before the government documents the problem.
Disputing an unfair rating has hard limits
Know what the dispute process can and can’t do before you stake your strategy on it. Agency CPARS guidance lets you comment, but the agency keeps final authority over the evaluation. Formal disputes route through the agency’s CPARS focal point and contracting activity, with narrow recourse to the boards of contract appeals — bad faith, abuse of discretion, failure to follow procedure, and not much else. Prevention plus an aggressive comment window beats litigation after the fact every time.
Every CPARS event is an operations failure first
Read the NDAA’s mandatory reporting categories again and you’ll notice something: they’re a list of operational discipline failures wearing a compliance costume.
Defective pricing is your cost accounting system and TINA compliance failing. Delinquent deliveries trace straight back to project management, capacity planning, and subcontractor oversight. Failure to flow down clauses is a subcontract management breakdown. Safety and regulatory non-compliance sweeps in your timekeeping and accounting findings. A cybersecurity failure is your CMMC posture coming due.
Every one of those is a broken internal system before it ever becomes a rating. Contractors running weak timekeeping, loose indirect rate discipline, sloppy flow-down processes, and thin cyber controls are stacking up future negative events right now — whether or not they’ve noticed.
Building a past performance volume that holds up
When you write the past performance volume for a new pursuit, evaluators hunt for three things: relevance (similar scope, size, complexity), recency (usually within three years), and quality. Lead with your strongest, most relevant contracts. Quote the agency’s own CPARS narratives back at them — there’s no stronger evidence than the customer’s own words. And confront any historical issue head-on with the corrective action you took. Evaluators forgive a documented, remediated problem far more readily than one you tried to hide.
If you’re a protégé in an SBA Mentor-Protégé joint venture, use the January 2025 SBA clarification: protégés can’t be held to the same evaluation criteria as standalone offerors, and strong protégé performance on smaller contracts has to be rated on par with the mentor’s work on larger ones.
The takeaway
Past performance is the only competitive asset that compounds — and under the FY 2026 NDAA, it’s the one tied most directly to whether your operations are actually disciplined. The contractors who win again and again don’t treat their active contracts as finished work. They treat every one of them as the foundation of the next award.
The pen is in the government’s hand. Your job is to make sure there’s nothing for it to write.