‹ Article 16 - Definition of offer Article 18 - Revocation of offer › Article 17 - Withdrawal of offer (1) An offer becomes effective when it reaches the offeree. (2) An offer, even if it is irrevocable, may be withdrawn if the withdrawal reaches the offeree before or at the same time as the offer. ‹ Article 16 - Definition of offer Article 18 - Revocation of offer ›