Document:

STEM CELL THERAPY INTERNATIONAL, INC.

              SCTI MEDICAL AND SCIENTIFIC ADVISORY BOARD AGREEMENT

     THIS AGREEMENT is made this 5th day of April 2006, by and between STEM CELL
THERAPY  INTERNATIONAL,  INC.; a corporation duly incorporated under the laws of
Nevada,  with  its  principal office located at 2203 North Lois Ave., 9th Floor,
Tampa,  Florida  33607  ("the  Company''), and DR. NICHOLAS KIPSHIDZE, MD., as a
member  of  the  SCTI  Medical  and  Scientific  Advisory  Board,  herein  ("the
Advisor").

     In  consideration  of the mutual agreements contained in this document, the
parties,  intending  to  be  legally  bound,  agree  as  follows:

 1.     INDEPENDENT  CONTRACTOR.

     The  Advisor  will  be an independent contractor and not an Employee of the
Company  and  will  determine  will  determine  the  method  of operation in the
performance  of  allo  (human)  stem  cell  biological  solution  and  tissue
transplantations  and/or  any  other  type of required stem cell transplantation
therapy.

     The  Advisor  will not be entitled to receive any compensation, commissions
or  benefits  other  than  those  expressly  provided  in  this  Agreement.

 2.     SCOPE  OF  DUTIES.

(a)     The  Advisor  certifies  that  there  are  no  outstanding agreements or
obligations  that conflict with any of the provisions of this Agreement, or that
would  preclude  or  in  any  way  compromise the Advisor in compliance with the
provisions  hereof.

(b)     The  Advisor agrees to actively participate in the Company's Medical and
Scientific  Advisory Board and to review patient's medical charts and records as
provided  by  the  Company and to provide the Company a written report detailing
recommendations  for  the  appropriate  course  of  stem cell therapy treatment.

(c)     The  Advisor agrees to participate in conference calls and meetings with
the  SCTI  Corporate  Officers  and  other  members of the Company's Medical and
Scientific  Advisory  Board  when his/her schedule allows, to discuss the latest
technology  in  stem  cell  treatments  and  shall  contribute  with  his/her
recommendations  on  future  progress  and  corporate  direction.

(d)     The  Advisor will be required to interact with both treating Physicians,
current  and  potential  patients  to  determine  the  scope  of  treatments,
documentation  policies,  proof of efficacy issues, as well as develop strategic
alliances  with  other  organizations and individuals outside of the Company for
the advancement of our knowledge and expertise in the treatment of patients with
our  various  stem  cell  Products.

(e)     The  Advisor's  roll will be to make sure that the Company will maintain
its competitive edge both globally and in the United States in the field of stem
cell  treatments  and  research.

3.     COMPENSATION.

     The  Company  shall  issue  ten thousand (10,000) shares of Rule 144 common
stock  of  the  Company  to the Advisor as compensation for the initial one year
term  of  this  agreement,  as  follows:

     (a)     Thirty  days  after  the  execution  of this agreement, the Company
shall  issue  five  thousand  (5,000) shares of common stock under rule 144, and

     (b)     Six months after the execution of this agreement, the Company shall
issue  the  remaining  five thousand (5,000) shares common stock under rule 144.

     (c)     Compensation  for  successive renewal years under the terms of this
Agreement  shall  be  issued  at thirty days and six months after renewal in two
increments  of  five  thousand  shares  of  rule  144  common  stock.

4.     TERM.

This  Agreement will become effective on the date of execution and will continue
in  full  force  and  effect for a minimum period of one (1) year and thereafter
from year to year unless and until terminated by a party in accordance with this
Agreement.

5.     TERMINATION.

During  the  minimum  period  of  one  (1)  year,  either  party may immediately
terminate  this  Agreement  for  cause,  upon  written  notice for any breach of
contract,  if  the other party does not cure a material breach of this Agreement
within  thirty  (30)  days  of  receipt of written notice detailing such breach.

After  the  expiration  of  one  (1)  year  from  the  date of execution of this
agreement,  either  party  may  terminate  this  Agreement without cause and for
convenience with fourteen (14) days prior written notice to the other party.  At
any time, the parties may mutually agree in writing to terminate this Agreement.

6.     CONFIDENTIALITY.

          The  Advisor  shall  not  use  or divulge or communicate to any person
(other  than  those  whose  province  it  is to know the same or as permitted or
contemplated  by  this Agreement or with the written approval of the other party
or  as  may  be  required  by  law):
(i)                 any  Confidential  Company  Information;  or
(ii)                any  of  the  terms  of  this  Agreement

     The Advisor shall prevent the unauthorized publication or disclosure of any
such  information, materials or documents and ensure that any person to whom the
information,  materials  or  documents  are  disclosed is aware that the same is
confidential  and  is  covered  by  a  similar duty to maintain confidentiality.
     The  Advisor  shall  ensure  that  any  employees,  consultants,  agents or
advisors  are  aware  of  and comply with the confidentiality and non-disclosure
provisions contained in this Section and shall indemnify the Company against any
loss  or damage which the Company may sustain or incur as a result of any breach
of  the  terms  hereof  by the Advisor, or any employees, consultants, agents or
advisors.

     CONFIDENTIAL  INFORMATION.

     The Advisor shall not directly or indirectly, communicate, disclose or
divulge to any person or entity, or use for their own benefit or the benefit of
any person or entity, any knowledge or information which the Advisor may have
acquired, no matter from whom or on what matter such knowledge or information
may have been acquired from the Company.
These  provisions shall survive the expiration or termination of this Agreement.

7.     COVENANT  NOT  TO  COMPETE.

     The  Advisor,  during  the Term hereof, and for an additional period of two
years  thereafter  (the  ``Non-competition  Term''),  may  not:

(a)     Engage  or  participate  in or become employed by, or render advisory or
other  services  to,  any  business entity that competes with the Company in the
Ukraine  or  the  Dominican  Republic.

     If  the  foregoing  provision  is determined to be invalid by reason of the
length  of  any  period  or the size of the area set forth, such period of time,
such  area  or both will be considered to be reduced to a period of time or area
that  will  cure  such  invalidity.

(b)     Directly  or  indirectly  solicit  or induce any person, corporation, or
other  entity  that is a customer of the Company at the time of the execution of
this  agreement  or  that  was a customer at any time within the one-year period
immediately preceding such termination to become a customer of any other person,
corporation,  or  other  entity  competing  with  the Company or its Parent. The
Advisor  further  agrees  that  he  or  she  will  not approach any such person,
corporation,  or  other  entity  for  such  purposes.

(c)     Directly  or  indirectly solicit or induce any person who is an Employee
of  the  Company  or  its  Parent  to  become  employed  by  any person, firm or
corporation  competing  with the Company or its Parent, or approach any Employee
for  such  purpose.

(d)     Disclose  any  proprietary or confidential information of the Company or
its Parent relating to (i) the customers, clients, employees and accounts of the
Company  or  its  Parent,  including  but  not  limited  to  the identity of the
Company's  or  its  Parent's  customers  if  such  identity  is  proprietary  or
confidential;  (ii)  the  Company's  or  its Parent's business methods, systems,
plans,  policies,  and personnel; or (iii) the technical data, trade secrets, or
know-how  of the Company or its Parent, including, but not limited to, research,
product  plans, products, services, markets, software, developments, inventions,
processes,  formulas,  technology,  designs,  drawings,  engineering,  hardware,
configuration  information,  marketing,  finances  or other business information
disclosed  by  the Company or its Parent, either directly or indirectly, whether
in  writing,  orally  or  by  drawings  or  inspection  of  parts  or equipment.

8.     ARBITRATION  OF  DISPUTES.

(a)     The  Company  and  the  Advisor  agree  that  any dispute or controversy
arising  out  of or relating to any interpretation, construction, performance or
breach  of  this  Agreement,  will  be  settled  by  arbitration  to  be held in
Philadelphia  County,  Pennsylvania, in accordance with the rules then in effect
of the American Arbitration Association. The arbitrator may grant injunctions or
other  relief  in  the  dispute  or  controversy.

(b)     The  decision of the arbitrator will be final, conclusive and binding on
the  parties  to  the  arbitration.  Judgment may be entered on the arbitrator's
decision  in  any  court  of competent jurisdiction. The Company and The Advisor
will each pay one-half of the cost and expenses of the arbitration and each will
separately  pay  its  respective  counsel  fees  and  expenses.

     The  Advisor  acknowledges  that the services to be rendered by the Advisor
are  of  a  special, unique and extraordinary character, and in  connection with
such services, the Advisor will have access to confidential information vital to
the  Company's  and  its  Parent's  business.

By  reason  of  this, the Advisor agrees that if the Advisor violates any of the
provisions  of  this Agreement with respect to non-competition, diversion of the
Company's and its Parent's clients or employees, or confidentiality, the Company
and the Parent would sustain irreparable harm, and therefore, in addition to any
other  remedies  that  the Company and Parent may have under this Agreement, the
Company  and  Parent  will  be  entitled  to  apply  to  any  court of competent
jurisdiction  for  equitable  relief,  including  specific  performance  and
injunctions  restraining  the  Advisor  from  committing  or continuing any such
violation  of  this  Agreement.

(b)     The  Advisor  further  agrees  that  no  bond  or other security will be
required  in  obtaining  equitable relief and the Advisor hereby consents to the
issuance  of  an  injunction  and  to  the  ordering  of  specific  performance.

(c)     The  Advisor  further  agrees  that  he  will  be  required  to  sign an
INFORMATION & PRODUCT EVALUATION AND NON-DISCLOSURE AGREEMENT in order to accept
the  position  on  the  SCTI  Medical  and  Scientific  Advisory  Board.

9.     INDEMNITY

     The  Advisor shall and does hereby agree to defend, indemnify, release, and
save  harmless  the  Company,  or  companies  agents, representatives, servants,
employees,  attorneys,  and assigns from and against any and all suits, actions,
judgments,  damages,  costs, expenses, and attorneys fees incurred in defense of
any  action  or  proceeding  arising  out  of  the performance of this agreement

 10.     NOTICES.

     Any notice, request, demand or other communication required or permitted to
be  given under this Agreement will be sufficient if in writing and if delivered
personally, or sent by certified or registered mail as follows (or to such other
addressee or address as will be set forth in a notice given in the same manner):

If  to  the  Advisor:  DR.  NICHOLAS  KIPSHIDZE,  MD.

____________________________________

and
____________________________________

If  to  the  Company:

CALVIN  C.  CAO
CEO/Chairman
Stem  Cell  Therapy  International  Inc.
2203  North  Lois  Avenue,  9th  Floor,  Suite  #901
Tampa,  FL  33607

     Any  such notice will be deemed to be given on the date delivered or mailed
in  the  manner  provided  above.

 11.     WAIVER  OF  BREACH.

     The waiver by the Company or by the Advisor of a breach of any provision of
this Agreement by the other party will not operate, or be construed, as a waiver
of  any  other  breach  of  such  other  party.

12.     ASSIGNMENT.

     This  Agreement  will  inure  to  the  benefit of, and be binding upon, the
Company,  its  successors  and  assigns.  This  Agreement will be binding on the
Advisor,  the  Advisor's  heirs,  executors  or  administrators,  and  legal
representatives.  However,  this Agreement will not be assignable by the Advisor
nor  may  the  obligations  of the Advisor be delegated, without express written
consent  of  the  Company.

 13.     ENTIRE  AGREEMENT.

     This  Agreement  represents  the  entire  understanding  of the parties and
supersedes all previous agreements, oral or written, between the parties and any
modification  of  the  agreement must be in writing and executed by the parties.
This  is  a personal services contract and the Advisor may not assign any rights
or  delegate  any  duties  of  the  Advisor  under  this  agreement.

 14.     APPLICABLE  LAW.

     The  parties  agree  that  this  Agreement  will  be construed and enforced
pursuant  to  the  laws  of  the  Commonwealth  of  Pennsylvania.

     IN WITNESS WHEREOF, the parties have set their hands as of the day and year
first  above  written.

Stem Cell Therapy International, Inc.          SCTI Medical and Scientific Board
Advisor

By:                              BY:  _____________________________
CALVIN  C.  CAO,  CEO/CHAIRMAN          ADVISOR,  DR.  NICHOLAS  KIPSHIDZE  MD.PSO Fourth Supplemental Indenture 06/07/04, Series D

    
      

    

    EXHIBIT
      4(b)

    

     

    

    PUBLIC
      SERVICE COMPANY OF OKLAHOMA

     

    and

    

    THE
      BANK
      OF NEW YORK,

    AS
      TRUSTEE

    

    ___________________

    

    

    FOURTH
      SUPPLEMENTAL INDENTURE

    

    Dated
      as
      of June 7, 2004

    

    

    Supplemental
      to the Indenture

    dated
      as
      of November 1, 2000

    

    

    4.70%
      Senior Notes, Series D, due 2009

    

    
      

    

    

    FOURTH
      SUPPLEMENTAL INDENTURE, dated as of June 7, 2004, between PUBLIC SERVICE COMPANY
      OF OKLAHOMA, a corporation duly organized and existing under the laws of the
      State of Oklahoma (the “Company”), and THE BANK OF NEW YORK, a New York banking
      corporation organized and existing under the laws of the State of New York,
      as
      Trustee under the Original Indenture referred to below (the “Trustee”).

    

    RECITALS
      OF THE COMPANY

    

    The
      Company has heretofore executed and delivered to the Trustee an indenture dated
      as of November 1, 2000 (the “Original Indenture”), to provide for the issuance
      from time to time of its debentures, notes or other evidences of indebtedness
      (the “Senior Notes”), the form and terms of which are to be established as set
      forth in Section 201 and 301 of the Original Indenture.

    

    Section
      901 of the Original Indenture provides, among other things, that the Company
      and
      the Trustee may enter into indentures supplemental to the Original Indenture
      for, among other things, the purpose of establishing the form and terms of
      the
      Senior Notes of any series as permitted in Sections 201 and 301 of the Original
      Indenture.

    

    The
      Company desires to create a series of the Senior Notes in an aggregate principal
      amount of $50,000,000 to be designated the “4.70% Senior Notes, Series D, due
      2009” (the “4.70% Senior Notes”), and all action on the part of the Company
      necessary to authorize the issuance of the 4.70% Senior Notes under the Original
      Indenture and this Fourth Supplemental Indenture has been duly
      taken.

    

    All
      acts
      and things necessary to make the 4.70% Senior Notes, when executed by the
      Company and completed, authenticated and delivered by the Trustee as provided
      in
      the Original Indenture and this Fourth Supplemental Indenture, the valid and
      binding obligations of the Company and to constitute these presents a valid
      and
      binding supplemental indenture and agreement according to its terms, have been
      done and performed.

    

    NOW,
      THEREFORE, THIS FOURTH SUPPLEMENTAL INDENTURE WITNESSETH:

    

    That
      in
      consideration of the premises and of the acceptance and purchase of the 4.70%
      Senior Notes by the Holders thereof and of the acceptance of this trust by
      the
      Trustee, the Company covenants and agrees with the Trustee, for the equal
      benefit of the Holders of the 4.70% Senior Notes, as follows: 

    

    ARTICLE
      ONE

    Definitions

    

    The
      use
      of the terms and expressions herein is in accordance with the definitions,
      uses
      and constructions contained in the Original Indenture and the form of the Global
      Security attached hereto as Exhibit
      A.

    

    ARTICLE
      TWO

    Terms
      and
      Issuance of the 4.70% Senior Notes

    

    SECTION
      201.     Issue
      of 4.70% Senior Notes

    

    A
      series
      of Senior Notes which shall be designated the “4.70% Senior Notes, Series D, due
      2009” shall be executed, authenticated and delivered from time to time in
      accordance with the provisions of, and shall in all respects be subject to,
      the
      terms, conditions and covenants of, the Original Indenture and this Fourth
      Supplemental Indenture (including the form of Global Security set forth in
      Exhibit
      A
      hereto).
      The aggregate principal amount of the 4.70% Senior Notes, which may be
      authenticated and delivered under this Fourth Supplemental Indenture shall
      not,
      except as permitted by the provisions of the Original Indenture, exceed
      $50,000,000. 

    

    SECTION
      202.     Form
      of 4.70% Senior Notes, Incorporation of Terms

    

    The
      4.70%
      Senior Notes shall be substantially in the form of the Global Security attached
      hereto as Exhibit
      A.
      The
      terms of such 4.70% Senior Notes are herein incorporated by reference and are
      part of this Fourth Supplemental Indenture.

    

    SECTION
      203.     Depositary
      for Global Securities

    

    The
      Depositary for any Global Securities of the series of which this 4.70% Senior
      Note is a part shall be The Depository Trust Company in The City of New
      York.

    

    SECTION
      204.     Restrictions
      on Liens

    

    The
      covenant contained in Section 1007 of the Original Indenture shall not be
      applicable to the 4.70% Senior Notes.

    

    So
      long
      as any of the 4.70% Senior Notes are outstanding, the Company will not create
      or
      suffer to be created or to exist any additional mortgage, pledge, security
      interest, or other lien (collectively “Liens”) on any of its utility properties
      or tangible assets now owned or hereafter acquired to secure any indebtedness
      for borrowed money (“Secured Debt”), without providing that the 4.70% Senior
      Notes will be similarly secured. This restriction does not apply to the
      Company’s subsidiaries, nor will it prevent any of them from creating or
      permitting to exist Liens on their property or assets to secure any Secured
      Debt. Further, this restriction on Secured Debt does not apply to the Company’s
      existing first mortgage bonds that have previously been issued under its
      Mortgage and Deed of Trust, dated July 1, 1945, between the Company and Liberty
      Bank and Trust Company of Tulsa, National Association, as successor to The
      First
      National Bank and Trust Company of Tulsa, as Trustee or any indenture
      supplemental thereto; provided that this restriction will apply to future
      issuances thereunder (other than issuances of refunding first mortgage bonds).
      In addition, this restriction does not prevent the creation or existence
      of:

    

    (a) Liens
      on
      property existing at the time of acquisition or construction of such property
      (or created within one year after completion of such acquisition or
      construction), whether by purchase, merger, construction or otherwise, or to
      secure the payment of all or any part of the purchase price or construction
      cost
      thereof, including the extension of any Liens to repairs, renewals,
      replacements, substitutions, betterments, additions, extensions and improvements
      then or thereafter made on the property subject thereto; 

    

    (b) Financing
      of the Company’s accounts receivable for electric service; 

    

    (c) Any
      extensions, renewals or replacements (or successive extensions, renewals or
      replacements), in whole or in part, of liens permitted by the foregoing clauses;
      and

    

    (d) The
      pledge of any bonds or other securities at any time issued under any of the
      Secured Debt permitted by the above clauses.

    

    In
      addition to the permitted issuances above, Secured Debt not otherwise so
      permitted may be issued in an amount that does not exceed 15% of Net Tangible
      Assets as defined below. 

    

    “Net
      Tangible Assets” means the total of all assets (including revaluations thereof
      as a result of commercial appraisals, price level restatement or otherwise)
      appearing on the Company’s balance sheet, net of applicable reserves and
      deductions, but excluding goodwill, trade names, trademarks, patents,
      unamortized debt discount and all other like intangible assets (which term
      shall
      not be construed to include such revaluations), less the aggregate of the
      Company’s current liabilities appearing on such balance sheet. For purposes of
      this definition, the Company’s balance sheet does not include assets and
      liabilities of its subsidiaries.

    

    This
      restriction also does not apply to or prevent the creation or existence of
      leases made, or existing on property acquired, in the ordinary course of
      business.

    

    SECTION
      205.     Place
      of Payment

    

    The
      Place
      of Payment in respect of the 4.70% Senior Notes will be at the principal office
      or place of business of the Trustee or its successor in trust under the
      Indenture, which, at the date hereof, is located at 101 Barclay Street, New
      York, NY 10281, Attention: Corporate Trust Department.

    

    SECTION
      206.     Sinking
      Funds.

    

    Article
      Twelve of the Indenture shall not apply to the 4.70% Senior Notes.

    

    SECTION
      207.     Redemption

    

    The
      4.70%
      Senior Notes shall be redeemable at the option of the Company, in whole at
      any
      time or in part from time to time, upon not less than thirty but not more than
      sixty days’ previous notice given by mail to the registered owners of the 4.70%
      Senior Notes at a redemption price equal to the greater of (i) 100% of the
      principal amount of the 4.70% Senior Notes being redeemed and (ii) the sum
      of
      the present values of the remaining scheduled payments of principal and interest
      on the 4.70% Senior Notes being redeemed (excluding the portion of any such
      interest accrued to the date of redemption) discounted (for purposes of
      determining present value) to the redemption date on a semi-annual basis
      (assuming a 360-day year consisting of twelve 30-day months) at the Treasury
      Rate (as defined below) plus 20 basis points, plus, in each case, accrued
      interest thereon to the date of redemption.

    

    “Comparable
      Treasury Issue” means the United States Treasury security selected by an
      Independent Investment Banker as having a maturity comparable to the remaining
      term of the 4.70%
      Senior Notes
      that would be utilized, at the time of selection and in accordance with
      customary financial practice, in pricing new issues of corporate debt securities
      of comparable maturity to the remaining term of the Notes.

    

    “Comparable
      Treasury Price” means, with respect to any redemption date, (i) the average of
      the bid and asked prices for the Comparable Treasury Issue (expressed in each
      case as a percentage of its principal amount) on the third Business Day
      preceding such redemption date, as set forth in the daily statistical release
      (or any successor release) published by the Federal Reserve Bank of New York
      and
      designated “Composite 3:30 p.m. Quotations for U. S. Government Securities” or
      (ii) if such release (or any successor release) is not published or does not
      contain such prices on such third Business Day, the Reference Treasury Dealer
      Quotation for such redemption date.

    

    “Independent
      Investment Banker” means one of the Reference Treasury Dealers appointed by the
      Company and reasonably acceptable to the Trustee.

    

    “Reference
      Treasury Dealer” means a primary U.S. government securities dealer in New York
      City selected by the Company and reasonably acceptable to the
      Trustee.

    

    “Reference
      Treasury Dealer Quotation” means, with respect to the Reference Treasury Dealer
      and any redemption date, the average, as determined by the Trustee, of the
      bid
      and asked prices for the Comparable Treasury Issue (expressed in each case
      as a
      percentage of its principal amount) quoted in writing to the Trustee by such
      Reference Treasury Dealer at or before 5:00 p.m., New York City time, on the
      third Business Day preceding such redemption date.

    

    “Treasury
      Rate” means, with respect to any redemption date, the rate per annum equal to
      the semi-annual equivalent yield to maturity of the Comparable Treasury Issue,
      assuming a price for the Comparable Treasury Issue (expressed as a percentage
      of
      its principal amount) equal to the Comparable Treasury Price for such redemption
      date.

     

    ARTICLE
      THREE

    Miscellaneous

    

    SECTION
      301.   
Execution
      as Supplemental Indenture

    

    This
      Fourth Supplemental Indenture is executed and shall be construed as an indenture
      supplemental to the Original Indenture and, as provided in the Original
      Indenture, this Fourth Supplemental Indenture forms a part thereof.

    

    SECTION
      302.    Conflict
      with Trust Indenture Act

    

    If
      any
      provision hereof limits, qualifies or conflicts with another provision hereof
      which is required to be included in this Fourth Supplemental Indenture by any
      of
      the provisions of the Trust Indenture Act, such required provision shall
      control. 

    

    SECTION
      303.     Effect
      of Headings

    

    The
      Article and Section headings herein are for convenience only and shall not
      affect the construction hereof.

    

    SECTION
      304.     Successors
      and Assigns

    

    All
      covenants and agreements by the Company in this Fourth Supplemental Indenture
      shall bind its successors and assigns, whether so expressed or not.

    

    SECTION
      305.     Separability
      Clause

    

    In
      case
      any provision in this Fourth Supplemental Indenture or in the 4.70% Senior
      Notes
      shall be invalid, illegal or unenforceable, the validity, legality and
      enforceability of the remaining provisions shall not in any way be affected
      or
      impaired thereby.

    

    SECTION
      306.     Benefits
      of Fourth Supplemental Indenture

    

    Nothing
      in this Fourth Supplemental Indenture or in the 4.70% Senior Notes, express
      or
      implied, shall give to any Person, other than the parties hereto and their
      successors hereunder and the Holders, any benefit or any legal or equitable
      right, remedy or claim under this Fourth Supplemental Indenture.

    

    SECTION
      307.     Execution
      and Counterparts

    

    This
      Fourth Supplemental Indenture may be executed in any number of counterparts,
      each of which shall be deemed to be an original, but all such counterparts
      shall
      together constitute but one and the same instrument.

    

    IN
      WITNESS WHEREOF, the parties hereto have caused this Fourth Supplemental
      Indenture to be duly executed and attested, all as of the day and year first
      above written. 

     

    

    
      	 	
              PUBLIC
                SERVICE COMPANY OF OKLAHOMA

            
	 	 	 
	 	
              By:

            	
              /s/ /s/
                Stephen P. Smith  

            
	 	 	
              Name: Stephen
                P. Smith

            
	 	 	
              Title: Treasurer

            
	
              Attest:

            	 	 
	
              /s/
                Thomas G. Berkemeyer  

            	 	 
	
              Assistant
                Secretary

            	 	 
	 	 	 
	 	 	
              THE
                BANK OF NEW YORK,

            
	 	 	
              as
                Trustee

            
	 	 	 
	 	
              By:

            	
              /s/
                Van K. Brown  

            
	 	 	
              Authorized
                Signatory

            
	
              Attest:

            	 	 
	 	 	 
	
              /s/Michael
                Pitfick 

            	 	 
	
              Name: 
                Michael Pitfick

            	 	 
	
              Title: 
                Assistant Vice President

            	 	 

    

    

     

    
      	
              STATE
                OF OHIO

            	
              )

            	 
	 	
              )

            	
              :
                ss

            
	
              COUNTY
                OF FRANKLIN

            	
              )

            	 

    

    

    On
      the
      4th day of June, 2004, personally appeared before me, a Notary Public within
      and
      for said County in the State of Ohio, Stephen P. Smith and Thomas G. Berkemeyer,
      to me known and known to me to be respectively the Treasurer and Assistant
      Secretary of Public Service Company of Oklahoma, one of the corporations named
      in and which executed the foregoing instrument, who severally acknowledged
      that
      they did sign said instrument as such Treasurer and Assistant Secretary for
      and
      on behalf of said corporation and that the same is their free act and deed
      as
      such Treasurer and Assistant Secretary, respectively, and the free and corporate
      act and deed of said corporation. 

    

    In
      witness whereof, I have hereunto set my hand notarial seal this 4th day of
      June,
      2004.

    

    
      	 	
              /s/ Mary
                M. Soltesz   

            
	 	
              My
                Commission expires 7-13-04

            

    

     

    
       

      
        	
                STATE
                  OF NEW YORK

              	
                )

              	 
	 	
                )

              	
                :
                  ss

              
	
                COUNTY
                  OF NEW YORK

              	
                )

              	 

      

       

    

    On
      the
      7th day of June, 2004, personally appeared before me, a Notary Public within
      and
      for said County in the State of New York, Van K. Brown and Michael Pitfick,
      to
      me known and known to me to be respectively the Vice President and Assistant
      Vice President of The Bank of New York, one of the corporations named in and
      which executed the foregoing instrument, who severally acknowledged that they
      did sign said instrument as such Vice President and Assistant Vice President
      for
      and on behalf of said corporation and that the same is their free act and deed
      as such Vice President and Assistant Vice President, respectively, and the
      free
      and corporate act and deed of said corporation. 

    

    In
      witness whereof, I have hereunto set my hand notarial seal this 7th day of
      June,
      2004.

    

    
      	 	
              /s/ William
                J. Cassels    

            
	 	
              Notary
                Public, State of New York

            
	 	
              No.01CA5037739
                Commission Expires 5-18-06

            

    

    
       

        
          

        

      

    

    EXHIBIT
      A to EXHIBIT 4(b)

    THIS
      SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER
      REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE OF A
      DEPOSITARY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE
      NAME
      OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED
      CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND NO TRANSFER OF THIS SECURITY
      (OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY THE DEPOSITARY TO A
      NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY
      OR
      ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED
      CIRCUMSTANCES. 

    

    Unless
      this certificate is presented by an authorized representative of The Depository
      Trust Company, a New York corporation (“DTC”), to Public Service Company of
      Oklahoma or its agent for registration of transfer, exchange or payment, and
      any
      definitive certificate issued is registered in the name of Cede & Co. or in
      such other name as is requested by an authorized representative of DTC (and
      any
      payment is made to Cede & Co. or to such other entity as is requested by an
      authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF
      FOR
      VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL in as much as the registered
      owner hereof, Cede & Co., has an interest herein.

    

    No.
      R-1

    

    PUBLIC
      SERVICE COMPANY OF OKLAHOMA

    4.70%
      Senior Notes, Series D, due 2009

    

    

      
        	
                CUSIP
                  No. 744533BF6

              	
                $50,000,000

              

      

    PUBLIC
      SERVICE COMPANY OF OKLAHOMA, a corporation duly organized and existing under
      the
      laws of the State of Oklahoma (the “Company”, which term includes any successor
      Person under the Indenture hereinafter referred to), for value received, hereby
      promises to pay to CEDE & CO. or registered assigns, the principal sum of
FIFTY
      MILLION DOLLARS
      ($50,000,000) on June 15, 2009 (the “Final Maturity”), and to pay interest
      thereon from June 7, 2004 or from the most recent Interest Payment Date to
      which
      interest has been paid or duly provided for, semi-annually on June 15 and
      December 15 each year, commencing December 15, 2004, at the interest rate per
      annum specified above, until the principal amount shall have been paid or duly
      provided for. Interest shall be computed on the basis of a 360-day year of
      twelve 30-day months.

    

    The
      interest so payable, and punctually paid or duly provided for, on any Interest
      Payment Date will, as provided in such Indenture, be paid to the Person in
      whose
      name this Security (or one or more Predecessor Securities) is registered at
      the
      close of business on the Regular Record Date for such interest, which shall
      be
      the May 31 or November 30 (whether or not a Business Day) immediately preceding
      the Interest Payment Date. Any such interest not so punctually paid or duly
      provided for will forthwith cease to be payable to the Holder on such Regular
      Record Date and may either be paid to the Person in whose name this Security
      (or
      one or more Predecessor Securities) is registered at the close of business
      on a
      Special Record Date for the payment of such Defaulted Interest to be fixed
      by
      the Trustee, notice whereof shall be given to Holders of Securities of this
      series not less than 10 days prior to such Special Record Date, or be paid
      at
      any time in any other lawful manner not inconsistent with the requirements
      of
      any securities exchange on which the Securities of this series may be listed,
      and upon such notice as may be required by such exchange, all as more fully
      provided in said Indenture.

    

    Payment
      of the principal of (and premium, if any) and interest on this Security will
      be
      made at the office or agency of the Company maintained for that purpose in
      the
      Borough of Manhattan, The City of New York, New York, in such coin or currency
      of the United States of America as at the time of payment is legal tender for
      the payment of public and private debts; provided, however, that at the option
      of the Company payment of interest may be made by check mailed to the address
      of
      the Person entitled thereto as such address shall appear in the Security
      Register.

    

    This
      Security has initially been issued in the form of a Global Security, and the
      Company has initially designated The Depository Trust Company (the “Depositary”,
      which term shall include any successor depositary) as the depositary for this
      Security. For as long as this Security or any portion hereof is issued in such
      form, and notwithstanding the previous paragraph, all payments of interest,
      principal and other amounts in respect of this Security or portion thereof
      shall
      be made to the Depositary or its nominee in accordance with the Applicable
      Procedures in the coin or currency specified above and as further provided
      herein.

    

    This
      Security is one of a duly authorized issue of securities of the Company (the
      “Securities”), issued and to be issued in one or more series under an Indenture,
      dated as of November 1, 2000, as amended and supplemented from time to time
      (the
“Indenture”, which term shall have the meaning assigned to it in such
      instrument), between the Company and The Bank of New York, a New York banking
      corporation, as Trustee (the “Trustee”, which term includes any successor
      trustee under the Indenture), as to which Indenture and all indentures
      supplemental thereto reference is hereby made for a statement of the respective
      rights, limitations of rights, duties and immunities thereunder of the Company,
      the Trustee and the Holders and of the terms upon which the Securities are,
      and
      are to be, authenticated and delivered. This Security is one of the series
      designated on the face hereof, limited in aggregate principal amount to
      $50,000,000; provided, however, the aggregate principal amount hereof can be
      increased, without the consent of the Holder, as permitted by the provisions
      of
      the Original Indenture. The provisions of this Security, together with the
      provisions of the Indenture, shall govern the rights, obligations, duties and
      immunities of the Holder, the Company and the Trustee with respect to this
      Security, provided that, if any provision of this Security necessarily conflicts
      with any provision of the Indenture, the provision of this Security shall be
      controlling to the fullest extent permitted under the Indenture.

    

    The
      Securities of this Series are subject to redemption upon not less than 30 nor
      more than 60 days’ notice by mail to the Holders of such Securities at their
      addresses in the Security Register for such Series at the option of the Company,
      in whole or in part, from time to time at a Redemption Price equal to
the
      greater of (i) 100% of the principal amount of the Notes being redeemed and
      (ii)
      the sum of the present values of the remaining scheduled payments of principal
      and interest on the Notes being redeemed (excluding the portion of any such
      interest accrued to the date of redemption) discounted (for purposes of
      determining present value) to the redemption date on a semi-annual basis
      (assuming a 360-day year consisting of twelve 30-day months) at the Treasury
      Rate (as defined below) plus 20 basis points, plus, in each case, accrued
      interest thereon to the date of redemption.

    

    “Comparable
      Treasury Issue” means the United States Treasury security selected by an
      Independent Investment Banker as having a maturity comparable to the remaining
      term of the Notes that would be utilized, at the time of selection and in
      accordance with customary financial practice, in pricing new issues of corporate
      debt securities of comparable maturity to the remaining term of the
      Notes.

    

    “Comparable
      Treasury Price” means, with respect to any redemption date, (1) the average of
      the bid and asked prices for the Comparable Treasury Issue (expressed in each
      case as a percentage of its principal amount) on the third Business Day
      preceding such redemption date, as set forth in the daily statistical release
      (or any successor release) published by the Federal Reserve Bank of New York
      and
      designated “Composite 3:30 p.m. Quotations for U.S. Government Securities” or
      (2) if such release (or any successor release) is not published or does not
      contain such prices on such third Business Day, the Reference Treasury Dealer
      Quotation for such redemption date.

    

    “Independent
      Investment Banker” means one of the Reference Treasury Dealers appointed by the
      Company and reasonably acceptable to the Trustee.

    

    “Reference
      Treasury Dealer” means a primary U. S. government securities dealer in New York
      City selected by the Company and reasonably acceptable to the
      Trustee.

    

    “Reference
      Treasury Dealer Quotation” means, with respect to the Reference Treasury Dealer
      and any redemption date, the average, as determined by the Trustee, of the
      bid
      and asked prices for the Comparable Treasury Issue (expressed in each case
      as a
      percentage of its principal amount) quoted in writing to the Trustee by such
      Reference Treasury Dealer at or before 5:00 p.m., New York City time, on the
      third Business Day preceding such redemption date.

    

    “Treasury
      Rate” means, with respect to any redemption date, the rate per annum equal to
      the semi-annual equivalent yield to maturity of the Comparable Treasury Issue,
      assuming a price for the Comparable Treasury Issue (expressed as a percentage
      of
      its principal amount) equal to the Comparable Treasury Price for such redemption
      date.

    

    If
      notice
      has been given as provided in the Indenture and funds for redemption of any
      Securities (or any portion thereof) called for redemption shall have been made
      available on the Redemption Date referred to in such notice, such Securities
      (or
      any portion thereof) will cease to bear interest on the date fixed for such
      redemption specified in such notice and the only right of the Holders of such
      Securities will be to receive payment of the Redemption Price.

    

    In
      the
      event of redemption of this Security in part only, a new Security or Securities
      of this Series and of like tenor for the unredeemed portion hereof will be
      issued in the name of the Holder hereof upon the cancellation
      hereof.

    

    The
      Securities of this series will not be subject to any sinking fund.

    

    If
      an
      Event of Default with respect to Securities of this series shall occur and
      be
      continuing, the principal of the Securities of this series may be declared
      due
      and payable in the manner and with the effect provided in the
      Indenture.

    

    Interest
      payments with respect to this Security will be computed and paid on the basis
      of
      a 360-day year of twelve 30-day months for the actual number of days
      elapsed.

    

    The
      Indenture permits, with certain exceptions as therein provided, the amendment
      thereof and the modification of the rights and obligations of the Company and
      the rights of the Holders of the Securities of each series to be affected under
      the Indenture at any time by the Company and the Trustee with the consent of
      the
      Holders of a majority in principal amount of the Securities at the time
      Outstanding of all series to be affected (voting as a class). The Indenture
      also
      contains provisions permitting the Holders of specified percentages in principal
      amount of the Securities of each Series at the time Outstanding, on behalf
      of
      the Holders of all Securities of such series, to waive compliance by the Company
      with certain provisions of the Indenture and certain past defaults under the
      Indenture and their consequences. Any such consent or waiver by the Holder
      of
      this Security shall be conclusive and binding upon such Holder and upon all
      future Holders of this Security and of any Security issued upon the registration
      of transfer hereof or in exchange herefor or in lieu hereof, whether or not
      notation of such consent or waiver is made upon this Security.

    

    No
      reference herein to the Indenture and no provision of this Security or of the
      Indenture shall alter or impair the obligation of the Company, which is absolute
      and unconditional, to pay the principal of, premium, if any, and interest on
      this Security at the times, place and rate, and in the coin or currency, herein
      prescribed.

    

    This
      Security shall be exchangeable for Securities registered in the names of Persons
      other than the Depositary with respect to such series or its nominee only as
      provided in the Indenture. This Security shall be so exchangeable if (x) the
      Depositary notifies the Company that it is unwilling or unable to continue
      as
      Depositary for such series or at any time ceases to be a clearing agency
      registered as such under the Exchange Act, (y) the Company executes and delivers
      to the Trustee an Officers’ Certificate providing that this Security shall be so
      exchangeable or (z) there shall have occurred and be continuing an Event of
      Default with respect to the Securities of such series. Securities so issued
      in
      exchange for this Security shall be of the same series, having the same interest
      rate, if any, and maturity and having the same terms as this Security, in
      authorized denominations and in the aggregate having the same principal amount
      as this Security and registered in such names as the Depositary for such Global
      Security shall direct.

    

    As
      provided in the Indenture and subject to certain limitations therein set forth,
      the transfer of a Security of the series of which this Security is a part is
      registrable in the Security Register, upon surrender of this Security for
      registration of transfer at the office or agency of the Company in any place
      where the principal of and any premium and interest on this Security are
      payable, duly endorsed by, or accompanied by a written instrument of transfer
      in
      form satisfactory to the Company and the Security Registrar duly executed by,
      the Holder hereof or his attorney duly authorized in writing, and thereupon
      one
      or more new Securities of this Series and of like tenor, of authorized
      denominations and for the same aggregate principal amount, will be issued to
      the
      designated transferee or transferees.

    

    The
      Securities of this Series are issuable only in registered form without coupons
      in denominations of $1,000 and any integral multiple thereof. As provided in
      the
      Indenture and subject to certain limitations therein set forth, Securities
      of
      this Series are exchangeable for a like aggregate principal amount of Securities
      of this Series and of like tenor of a different authorized denomination, as
      requested by the Holder surrendering the same.

    

    No
      service charge shall be made for any such registration of transfer or exchange,
      but the Company may require payment of a sum sufficient to cover any tax or
      other governmental charge payable in connection therewith.

    

    Prior
      to
      due presentment of this Security for registration of transfer, the Company,
      the
      Trustee and any agent of the Company or the Trustee may treat the Person in
      whose name this Security is registered as the owner hereof for all purposes,
      whether or not this Security be overdue, and neither the Company, the Trustee
      nor any such agent shall be affected by notice to the contrary.

    

    For
      so
      long as this Security is issued in the form of a Global Security, any notice
      to
      be given to the Holder of this Security shall be deemed to have been duly given
      to such Holder when given to the Depositary, or its nominee, in accordance
      with
      its Applicable Procedures. Neither the Company nor the Trustee will have any
      responsibility with respect to those policies and procedures or for any notices
      or other communications among the Depositary, its direct and indirect
      participants and the beneficial owners of this Security in global
      form.

    

    If
      at any
      time this Security is not represented by a Global Security, any notice to be
      given to the Holder of this Security shall be deemed to have been duly given
      to
      such Holder upon the mailing of such notice to the Holder at such Holder’s
      address as it appears on the Security Register maintained by the Company or
      its
      agent as of the close of business preceding the day such notice is
      given.

    

    Neither
      the failure to give any notice nor any defect in any notice given to the Holder
      of this Security or any other Security of this series will affect the
      sufficiency of any notice given to another Holder of any Securities of this
      series.

    

    Prior
      to
      due presentment of this Security for registration of transfer, the Company,
      the
      Trustee and any agent of the Company or the Trustee may treat the Person in
      whose name this Security is registered as the owner hereof for all purposes,
      whether or not this Security be overdue, and neither the Company, the Trustee
      nor any such agent shall be affected by notice to the contrary.

    

    The
      Indenture provides that the Company, at its option, (a) will be discharged
      from
      any and all obligations in respect of the Securities (except for certain
      obligations to register the transfer or exchange of Securities, replace stolen,
      lost or mutilated Securities, maintain paying agencies and hold moneys for
      payment in trust) or (b) need not comply with certain restrictive covenants
      of
      the Indenture, in each case if the Company deposits, in trust, with the Trustee
      money or U.S. Government Obligations which, through the payment of interest
      thereon and principal thereof in accordance with their terms, will provide
      money, in an amount sufficient to pay all the principal of, and premium, if
      any,
      and interest, if any, on the Securities on the dates such payments are due
      in
      accordance with the terms of such Securities, and certain other conditions
      are
      satisfied.

    

    No
      recourse shall be had for the payment of the principal of or the interest on
      this Security, or for any claim based hereon, or otherwise in respect hereof,
      or
      based on or in respect of the Indenture or any indenture supplemental thereto,
      against any incorporator, organizer, member, limited partner, stockholder,
      officer or director, as such, past, present or future, of the Company or any
      successor Person, whether by virtue of any constitution, statute or rule of
      law,
      or by the enforcement of any assessment or penalty or otherwise, all such
      liability being, by the acceptance hereof and as part of the consideration
      for
      the issuance hereof, expressly waived and released.

    

    This
      Security shall be governed by and construed in accordance with the laws of
      the
      State of New York without regard to principles of conflict of law except Section
      5-1401 of the New York General Obligations Law.

    

    All
      terms
      used in this Security which are defined in the Indenture shall have the meanings
      ascribed to them in the Indenture. 

    

    Unless
      the certificate of authentication hereon has been executed by the Trustee
      referred to herein by manual signature, this Security shall not be entitled
      to
      any benefit under the Indenture or be valid or obligatory for any purpose.
      

    

    IN
      WITNESS WHEREOF, Public Service Company of Oklahoma has caused this instrument
      to be duly executed under its corporate seal. 

    
      

      
        	 	
                PUBLIC
                  SERVICE COMPANY OF OKLAHOMA

              
	 	 	 
	 	
                By:

              	 
	 	 	
                Stephen
                  P. Smith

              
	 	 	
                Treasurer

              

      

      

      This
        is
        one of the Securities of the series designated herein and referred to in
        the
        within-mentioned Indenture.

      

      
        	
                Dated:     
                  June 7, 2004

              	
                THE
                  BANK OF NEW YORK

              
	 	 	 
	 	
                By:

              	 
	 	 	
                Authorized
                  Signatory

              

      

    

    

    
      

    

     

    
      
        

      

    

    FOR
      VALUE
      RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s)
      unto

    

    (PLEASE
      INSERT SOCIAL SECURITY OR OTHER

    IDENTIFYING
      NUMBER OF ASSIGNEE)

    

    _______________________________________

    

    ________________________________________________________________

    

    ________________________________________________________________

    (PLEASE
      PRINT OR TYPE NAME AND ADDRESS, INCLUDING ZIP CODE, OF

    ________________________________________________________________

    ASSIGNEE)
      the within Note and all rights thereunder, hereby

    ________________________________________________________________

    irrevocably
      constituting and appointing such person attorney to 

    ________________________________________________________________

    transfer
      such Note on the books of the Issuer, with full

    ________________________________________________________________

    power
      of
      substitution in the premises.

    

    

    Dated:________________________  _________________________

    

    NOTICE: The
      signature to this assignment must correspond with the name as written upon
      the
      face of the within Note in every particular, without alteration or enlargement
      or any change whatever and NOTICE: Signature(s) must be guaranteed by a
      financial institution that is a member of the Securities Transfer Agents
      Medallion Program (“STAMP”), the Stock Exchange Medallion Program (“SEMP”) or
      the New York Stock Exchange, Inc. Medallion Signature Program
      (“MSP”).

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00102-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00102-of-00352.parquet"}]]