Transitional effect of contract in the Law of Iran and France based on changes in 2016 Civil Code

One of the changes in French law, due to the revision of the Civil Code in 2016, is the issue of "transfer of ownership" and "risk transfer" in the two assumptions of "contradictory transactions" and "non-contradictory transactions" that the legislator has referred to it under the title the transitional effect of the Contract. Although the French legislator in the new Code confirmed the principles of "being satisfied" and "urgent," about the ownership transfer, and accepted the principles of "the simultaneous transfer of ownership" and "being responsible for debtor" about transfer of risk , but at the same time, he has tried to accept new legal institutions , such as the possibility of delay in the transfer of ownership, using the doctrine and judicial procedures, and overcome the impediments to previous legal institutions. In the present paper, through a descriptive-analytical method and relying on library resources, in addition to studying and evaluating the article of civil Code passed by France in 1804 and 2016 on the subject of the transitional effect of the contract, compare the rules governing them with Iranian law.