Latest Legislation: House Bill 9 - 129th General Assembly. PDF: Download Authenticated PDF.Every contract or duty within Chapters 1301. An offer is considered not in good faith if the supplier: • Misrepresents an important aspect or function of the product or service. The principle involved is that in commercial transactions good faith is required in the performance and enforcement of all agreements or duties. Good Faith in the Enforcement of Contracts, 73 IOWA L. REV. " U.C.C. § 2-103(l)(b). And is the contract subject to an implied term of good faith and fair dealing? Faith in Contract Interpretation and Gap-Filling: Reviling a Revered Relic, 80 ST. JOHN'S L. REV. The parties a duty of good faith and fair dealing in the performance and enforcement of the contract.