The Uniform Commercial Code (UCC) has been adopted in whole or in part by the legislatures of all 50 states. In most instances, the UCC treats all buyers and sellers alike. In some cases, it treats merchants differently than it does the occasional or casual buyer or seller. The UCC recognizes that the merchant is experienced and has a special knowledge of the relevant commercial practices.
Contract law as to offers is applicable to a sales contract, with the following exception. A firm offer by a merchant cannot be revoked if the offer:
" expresses an intention that it will not be revoked,
" is in a writing, and
" is signed by the merchant.
Unless it is expressly specified that an offer to buy or sell goods must be accepted just as made, the offeree may accept an offer and at the same time propose an additional term. This is contrary to general contract law.
