I  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                              WASHINGTON B.C. 2Q4«0

                                  March 6, 1992
                                                                     OWICEOF
                                                                  THE ADMUMSTRATOR
                                                                SCIENCE ADVISORY BOARD
EPA-SAB-IAQC-CON-92-003

Honorable William K. Reilly
Administrator
U.S. Environmental Protection Agency
401 M Street, S.W.
Washington, D.C. 20460

             Subject: Science Advisory Board Notification of a Consultation on the Office
             of Health Research (OHR) National Human Exposure Assessment Survey
             (NBEXAS).

Dear Mr, Reilly:

      On February 24, 1992, the Indoor Air Quality and Total Human Exposure Committee
(IAQTHEC) of the Science Advisory Board (SAB) met with staff of the Office of Health
Research and conducted a consultation on EPA's National Human Exposure Assessment
Survey (NHEXAS).  The SAB has developed the consultation as a mechanism to advise the
Agency on technical issues that should be considered in the development of regulations,
guidelines, or technical guidance before the Agency  has taken a position. A consultation is
conducted under the normal requirements of the Federal Advisory Committee Act, which
include advance notice of the public meeting in the Federal Register,

      We believe that the consultation achieved its  goal by discussing a number of important
issues that EPA can consider in developing its survey. As is our customary practice there
will be no formal report from the SAB as result of this consultation, nor do we expect any
formal response from the Agency. We look forward to advising the Agency in the future by
consultations as well as through more formal scientific reviews.

                                      Sincerely,
                                      laymond C. Loehr,
                                     Executive Committee

                                                  £•
                                                  f^^^	___^
                                     Morton. Lippmann,-Chair
                                     Indoor Air Quality and Total Human
                                     Exposure Committee

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