<signature> (I) Tax exempt status

Robert Trivers

INTERNAL REVENUE SERVICE
DISTRICT DIRECTOR
PO BOX 2350 ROOM 5127
LOS ANGELES, CA 90053

DEPARTMENT OF THE TREASURY

Date: SEP 25 1892

BIOSOCIAL RESEARCH FOUNDATION

Employer Identification Number:

Con

TYRONE THOMAS
Contact Telephone Number:

Accounting Period Ending:
December 31
Foundation Status Classification:
170(b)(1)(A)(vi)
Advance Ruling Period Begins:
July 20, 1992
Advance Ruling Period Ends:
Dec. 31, 1996
Addendum Applies:
No

Dear Applicant:

Based on information you supplied, and assuming your operations will be as stated in your application for recognition of exemption, we have determined you are exempt from federal income tax under section 501(a) of the Internal Revenue Code as an organization described in section 501(c)(3).

Because you are a newly created organization, we are not now making a final determination of your foundation status under section 509(a) of the Code. However, we have determined that you can reasonably expect to be a publicly supported organization described in sections 509(a)(1) and 170(b)(1)(A)(vi).

Accordingly, during an advance ruling period you will be treated as a publicly supported organization, and not as a private foundation. This advance ruling period begins and ends on the dates shown above.

Within 90 days after the end of your advance ruling period, you must require-ments send us of the the information applicable needed support to test determine during whether the advance you have ruling met period. the If you classi-fy establish you as a that section you have 509(a)(1) been a or publicly 509(a)(2) supported organization organization, as long as we will you continue to meet the requirements of the applicable support test. If you do not meet the public support requirements during the advance ruling period, we will classify you as a private foundation for future periods. Also, if we classify you as a private foundation, we will treat you as a private foundation from your beginning date for purposes of section 507(d) and 4940.

Grantors and contributors may rely on our determination that you are not a private foundation until 90 days after the end of your advance ruling period. If you send us the required information within the 90 days, grantors and ex-mitribunra may continue to rely on the advance determination until we make a final determination of your foundation status.

Letter 1045 (DO/CG)