## Facts

- ARB, Inc. (American Research Bureau) was a media-research company that sought to replace diary-based audience measurement with an electronic monitoring system.
- ARB negotiated with E-Systems, Inc., an electronics manufacturer, to design and produce the system and entered a detailed written contract in October 1973.
- The contract was lengthy (about 53 pages), set out multiple performance stages with progress payments tied to successful completion, and contained an integration clause stating the writing was a “complete and exclusive statement” of the agreement.
- During negotiations, ARB proposed a draft term expressly providing for “cover” damages if E-Systems breached and ARB had to buy substitute goods at a higher price.
- E-Systems objected to the cover clause, and ARB removed it from the final signed contract.
- E-Systems delivered early models and equipment, but ARB reported substantial defects and repeated failures to meet contract specifications and warranties.
- ARB repeatedly communicated concerns, sought assurances that performance would be brought into conformity, and continued testing while E-Systems promised corrections.
- As problems persisted, ARB suspended further progress payments and ultimately pursued substitute performance elsewhere, then sued E-Systems for breach and UCC remedies, including cover.
- After a bench trial, the district court found E-Systems breached and awarded ARB damages on liability, but denied cover damages, reasoning ARB had bargained away cover by deleting the draft cover clause.
- E-Systems appealed rulings tied to breach and ARB’s remedies (including the effect of ARB’s payment suspension and revocation). ARB cross-appealed the denial of cover damages.

## Issues

1. Whether ARB, having reasonable grounds for insecurity about E-Systems’ performance, could demand adequate assurance under UCC § 2-609 and commercially reasonably suspend payments pending assurance.
2. Whether ARB effectively revoked acceptance under UCC § 2-608 by acting within a reasonable time and giving sufficient notice despite continued testing and dealings with the goods.
3. Whether, in light of UCC § 2-202 and an integration clause, the district court could rely on negotiation history—specifically the deletion of a proposed cover clause—to deny ARB statutory cover damages.

## Decision

- The court affirmed the district court’s determinations that E-Systems breached and that ARB’s remedial conduct (including seeking assurance and suspending payment) was permitted under the UCC on the record presented.
- The court agreed ARB had reasonable grounds for insecurity and that ARB’s course of communications and the parties’ dealings could satisfy § 2-609’s requirement of a written demand for adequate assurance.
- The court upheld the district court’s conclusion that ARB’s revocation of acceptance was effective under § 2-608 given the ongoing defects, the timing of ARB’s action, and ARB’s notice to E-Systems.
- The court reversed the denial of cover damages, holding the district court erred by treating deletion of a draft cover clause as a waiver of UCC cover where the final, integrated writing did not exclude cover.
- The court remanded for further proceedings on damages consistent with the parol-evidence rule and the integrated contract.

## Legal Principles

- Under UCC § 2-609, when reasonable grounds for insecurity arise, a party may demand (in writing) adequate assurance of due performance and may, if commercially reasonable, suspend its own remaining performance until assurance is received.
- For § 2-609, the “writing” requirement can be met by the parties’ communications taken together when the record shows a shared understanding that assurances were demanded and that suspension was the alternative to conforming performance.
- Under UCC § 2-608, revocation of acceptance must occur within a reasonable time after the buyer discovers (or should have discovered) the basis for revocation, before substantial non-defect-related change in the goods, and is effective only upon notice to the seller.
- UCC § 2-202 limits use of prior or contemporaneous negotiations to vary a final written expression; an integration clause strongly supports treating the written contract as the complete agreement.
- Deletion of a proposed contract term during negotiations does not, by itself, eliminate a statutory remedy (such as UCC cover) when the final integrated contract is silent on excluding that remedy.

## Conclusion

The D.C. Circuit largely left intact the district court’s liability and UCC-remedy rulings on adequate assurance and revocation, but it held that the negotiated deletion of a draft cover clause could not be used—against an integrated writing and UCC § 2-202—to strip ARB of statutory cover; the case was remanded for a proper damages determination that included potential cover recovery.


ARB, Inc. v. E-Systems, Inc., 663 F.2d 189 (1980)