The report is directed at drawing a picture of the prevailing legal and institutional frameworks of the water sector in Jordan in relation to climate change adaptation in the Zarqa River Basin (ZRB). To achieve this purpose;; three tasks were conducted;; (1) literature of pertinent documents on legislation;; administration;; regulations;; water policies and water laws were reviewed;; (2) address the gaps in the water policies in Jordan as related to climate change vulnerability;; and to raise awareness of the importance of developing climate change mitigation measures;; and (3) propose policy options for adaptation to climate change through implementation of IWRM as a tool. The objective of the revision is the assessing the appropriateness and effectiveness of the existing institutional framework regarding the climate change adaptation measures in ZRB. Combating water scarcity remains a strategic challenge that Jordan faces for augmenting its water resources.