What type of warranty is defined as written?

The type of warranty that is defined as written is the express warranty. This warranty is explicitly stated, either in writing or verbally, and pertains to specific terms and conditions regarding the quality and performance of the product. In the context of manufactured homes, an express warranty might detail the construction quality, materials used, or other specifics that the dealer provides to the buyer.

In contrast, other warranties such as implied warranties of merchantability and implied warranties of fitness are not written and operate under the assumption that the product will meet certain standards of quality and suitability. These kinds of warranties arise by operation of law rather than being explicitly provided by the seller. An as-is warranty indicates that the buyer accepts the product in its current condition without promise of quality or performance, which does not imply any written terms of warranty from the seller. Thus, express warranties are unique in that they are explicitly communicated and documented, making them the correct answer in this context.