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National Institutes of Health Guidelines for Human Stem Cell Research 

---
identifier: "/us/fr/2010-5948"
source: "fr"
legal_status: "authoritative_unofficial"
title: "National Institutes of Health Guidelines for Human Stem Cell Research"
title_number: 0
title_name: "Federal Register"
section_number: "2010-5948"
section_name: "National Institutes of Health Guidelines for Human Stem Cell Research"
positive_law: false
currency: "2010-03-18"
last_updated: "2010-03-18"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Health and Human Services Department"
document_number: "2010-5948"
document_type: "notice"
publication_date: "2010-03-18"
agencies:
  - "Health and Human Services Department"
  - "National Institutes of Health"
fr_citation: "75 FR 13137"
fr_volume: 75
comments_close_date: "2010-03-26"
---

#  National Institutes of Health Guidelines for Human Stem Cell Research

**SUMMARY:**

The National Institutes of Health (NIH) is extending the public comment period on a revision to the definition of human embryonic stem cells (hESCs) in the “National Institutes of Health Guidelines for Human Stem Cell Research” (Guidelines). Due to a technical problem, comments entered in the Web site between 11:59 p.m. EST on February 28, 2010, through 8 a.m. EST on March 2, 2010, were not received by the agency and should be re-entered in order to be considered.

On February 23, 2010, NIH issued a *Federal Register* notice ( *http://edocket.access.gpo.gov/2010/pdf/2010-3527.pdf* ) requesting public comment on a proposed change to the Guidelines. Due to a technical problem, comments entered in the Web site between 11:59 p.m. EST on February 28, 2010, through 8 a.m. EST on March 2, 2010, were not received by the agency and should be re-entered in order to be considered.

**DATES:**

Written comments on this proposed change must be received by NIH on or before March 26, 2010, in order to be considered.

**ADDRESSES:**

Public comments may be entered at: *http://hescregapp.od.nih.gov/comments/add.htm* .

Comments may also be mailed to: NIH Stem Cell Guidelines, MSC 7997, 9000 Rockville Pike, Bethesda, Maryland 20892-7997. Comments will be made publicly available. Personally identifiable information (except for organizational affiliations) will be removed prior to making comments publicly available.

Dated: March 10, 2010.

Francis S. Collins,

Director, National Institutes of Health.