Adults and children with CKD, not on dialysis; kidney transplant recipients. 6. Developer Identify the organization(s) responsible for guideline development and the names/credentials/potential conflicts of interest of individuals involved in the guideline s development. Organization: KDIGO Names/credentials/potential conflicts of interest of individuals involved in the guideline s development are disclosed in the Biographic and Disclosure Information. 7. Funding source/sponsor Identify the funding source/sponsor and describe its role in developing and/or reporting the guideline. Disclose potential conflict of interest. KDIGO is supported by the following consortium of sponsors: Abbott, Amgen, Bayer Schering Pharma, Belo Foundation, Bristol-Myers Squibb, Chugai Pharmaceutical, Coca-Cola Company, Dole Food Company, Fresenius Medical Care, Genzyme, Hoffmann-LaRoche, JC Penney, Kyowa Hakko Kirin, NATCO The Organization for Transplant Professionals, NKF-Board of Directors, Novartis, Pharmacosmos, PUMC Pharmaceutical, Robert and Jane Cizik Foundation, Shire, Takeda Pharmaceutical, Transwestern Commercial Services, Vifor Pharma, and Wyeth. No funding is accepted for the development or reporting of specific guidelines. All stakeholders could participate in open review. 8. Evidence collection Describe the methods used to search the scientific literature, including the range of dates and databases searched, and criteria applied to filter the retrieved evidence. Topics were triaged either to a) systematic review, b) systematic search followed by narrative summary, or c) narrative summary. For systematic reviews on treatment with different anti-hypertensive agents or to different BP targets, we searched for RCTs in MEDLINE, Cochrane Central Registry for trials, and Cochrane database of systematic reviews. Screening criteria are outlined in the Methods for Guideline Development chapter. The search was updated through January 2011 and supplemented by articles identified by Work Group members through February 2012. We also searched for pertinent existing guidelines and systematic reviews. 