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:SZ g UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Ya WASHINGTON, D.C. 20460

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Al paee

ee JAN 5 1979 x ¢ TSCA EPA
Ce : _ . OFFICE OF TOXIC SUBSTANCES

Dear Colleague,

Please excuse this xerox copy, but it is not possible
to write each of you individually at this time. As you can
see from the letterhead, I have transferred to the Office of
Toxic Substances (OTS) within EPA.

With the evolution of the NIH/EPA Chemical Information
- System (CIS) reaching a new maturation, we all believe it is
best to continue the development of CIS in a way to insure
maximum capabilities for the user communities through the
systems being developed and coordinated by OTS under its
mandate of the Toxic Substances Control Act.

I will be working in the OTS Chemical Information
Division, headed by Bruno Vasta, whom many of you know from
his many years in the field of chemical information.

To those of you who presently use or collaborate with
the NIH/EPA Chemical Information System, Bruno and I would
like to assure you that this internal reorganization is
meant to strengthen efforts for CIS development. For all
practical purposes this move will be transparent to you, but
with the complexity of the Government bureaucracy, we all
thought it best to explicitly write to you. While I am \;
still at the same location in Washington. my mailing code has we
been changed from PM-218 to TS-793, so please make a note of =o
this. At present my phone is still the same 202-755-4938. pe

As part of my work at OTS I will be involved with
development and interfacing of additional systems besides it
the NIH/EPA Chemical Information System. These include the
internal OTS System - CICIS - Chemicals in Commerce Informa-
tion System and the long-term coordination project - CSIN ~-

the Chemical Substance Information Network. I hope there

will be areas of mutual interest in CICIS, CSIN and other

such projects, so that we may extend our cooperation and
collaboration beyond the NIH/EPA Chemical Information System.
Best wishes for a healthy, happy and productive New
year.

With warm regards,

Ponsa

Stephen R. Heller
Physical Scientist,
Chemical Information Division