AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER ___, 2005
Registration Statement File No. 333-47911

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1 TO THE
FORM S-8
REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933

SOLUTIA INC.
(Exact name of registrant as specified in its charter)

Delaware 43-1781797
(State or other jurisdiction of (I.R.S. Employer
incorporation or organization) Indemnification No.)

575 Maryville Centre Drive
P.O. Box 66760
St. Louis, Missouri 63166-6760
(Address of Principal Executive Offices) (Zip Code)

SOLUTIA INC. ERISA PARITY SAVINGS AND INVESTMENT PLAN
(Full title of the plan)

Rosemary L. Klein
Senior Vice President, General Counsel
and Secretary
Solutia Inc.
575 Maryville Centre Drive
P. O. Box 66760
St. Louis, Missouri
63166-6760
(Name and address of agent for service)

(314) 674-1000
(Telephone number, including area code, of agent for service)

DEREGISTRATION

On March 13, 1998, Solutia Inc. registered on a Registration
Statement on Form S-8 (file number 333-47911) $7,500,000 in unsecured
obligations of Solutia Inc. to pay deferred compensation in the future in
accordance with the terms of the Solutia Inc. ERISA Parity Savings and
Investment Plan. On December 7, 2005, Solutia's Executive Compensation and
Development Committee terminated the plan. Therefore, Solutia hereby removes
from registration all obligations registered on March 13, 1998, that have
not been sold pursuant to the plan.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
Post-Effective Amendment No. 1 to the Registration Statement on Form S-8 to
be signed on its behalf by the undersigned, thereunto duly authorized, in
the County of St. Louis, and the State of Missouri, on this ___ day of
December, 2005.

SOLUTIA INC.
(Registrant)

By /s/ Rosemary L. Klein
---------------------------
Rosemary L. Klein
Senior Vice President, General Counsel
and Secretary

Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

SIGNATURE TITLE DATE
--------- ----- ----

* President, Chief Executive Officer and Director December , 2005
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Jeffry N. Quinn

* Senior Vice President and Chief Financial Officer December , 2005
- -----------------------
James M. Sullivan

* Vice President and Controller (Principal Accounting
- ----------------------- Officer) December , 2005
Timothy J. Spihlman

* Chairman of the Board and Director December , 2005
- -----------------------
Paul H. Hatfield

* Director December , 2005
- -----------------------
Robert H. Jenkins

* Director December , 2005
- -----------------------
Philip R. Lochner, Jr.

* Director December , 2005
- -----------------------
Frank A. Metz, Jr.

* Director December , 2005
- -----------------------
J. Patrick Mulcahy

* Director December , 2005
- -----------------------
Sally G. Narodick

* Director December , 2005
- -----------------------
John B. Slaughter

<FN>
* Rosemary L. Klein, by signing her name hereto, does sign this
document on behalf of the above noted individuals, pursuant to powers of
attorney duly executed by such individuals which have been filed as an
Exhibit to this Registrant Statement.

/s/ Rosemary L. Klein
---------------------------------
Rosemary L. Klein
Attorney-in-Fact

EXIBIT INDEX

These Exhibits are numbered in accordance with the Exhibit Table of
Item 601 of Regulation S-K.

Exhibit No. Description
----------- -----------
24 Powers of Attorney submitted by Jeffry N. Quinn, James M.
Sullivan, Timothy J. Spihlman, Paul H. Hatfield, Robert H.
Jenkins, Philip R. Lochner, Jr., Frank A. Metz, Jr.,
J. Patrick Mulcahy, Sally G. Narodick, and John B.
Slaughter (incorporated here by reference to Exhibit 24(a)
of Solutia's Form 10-K for the year ended December 31, 2004,
filed on March 9, 2005)