The National Institutes of Health Guidelines on Human Stem Cell Research were published on July 7, 2009. This was in response to the March 9, 2009 Executive Order (EO) 13505 (see below), which changed the way National Institutes of Health (NIH) can support and conduct human stem cell research. The HHS Secretary, through the NIH Director, was required to review existing NIH and other widely-recognized guidelines on human stem cell research and issue new NIH guidance within 120 days of the date of the EO.
On March 9, 2009, President Barack Obama issued EO 13505, entitled Removing Barriers to Responsible Scientific Research Involving Human Stem Cells (108KB PDF; get Adobe Reader).
In addition to requiring the above NIH guidelines, this EO also revoked two items: