UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC 20549
                             --------------------

                                   FORM 10-K

                                 ANNUAL REPORT
                       PURSUANT TO SECTIONS 13 OR 15(d)
                    OF THE SECURITIES EXCHANGE ACT OF 1934

(Mark One)

[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

         For the fiscal year ended:   December 31, 2007
                                      -----------------

                                      or

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

         For the transition period from               to
                                        -------------    -------------

            Commission file number of Issuing Entity: 333-135846-21
                                                      -------------

                 CWABS Asset-Backed Certificates Trust 2007-4,
                   Asset-Backed Certificates, Series 2007-4
                   ----------------------------------------
          (Exact name of Issuing Entity as Specified in Its Charter)

                Commission file number of Depositor: 333-135846
                                                     ----------

                                  CWABS, Inc.
                                  -----------
             (Exact name of Depositor as Specified in Its Charter)

                         Countrywide Home Loans, Inc.
                         ----------------------------
              (Exact name of Sponsor as Specified in Its Charter)

              Delaware                                    95-4596514
------------------------------------             -------------------------------
(State or Other Jurisdiction of                  (I.R.S. Employer Identification
Incorporation or Organization of                 No. of the Depositor)
the Depositor)

c/o  Countrywide Home Loans Servicing LP
     4500 Park Granada
     Calabasas, California                                   91302
----------------------------------------         -------------------------------
(Address of Principal Executive Offices                    (Zip Code)
of the Depositor)

Registrant's telephone number, including area code:   (818) 225-3000
                                                      --------------

Securities registered pursuant to Section 12(b) of the Act:  None
                                                             ----

Securities registered pursuant to Section 12(g) of the Act:  None
                                                             ----

<PAGE>

      Indicate by check mark if the registrant is a well-known seasoned
issuer, as defined in Rule 405 of the Securities Act.            [ ] Yes [X] No

      Indicate by check mark if the registrant is not required to file reports
pursuant to Section 13 or Section 15(d) of the Act.              [ ] Yes [X] No

      Indicate by check mark whether the registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.                   [X] Yes [ ] No

      Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K (ss.229.405 of this chapter) is not contained
herein, and will not be contained, to the best of registrant's knowledge, in
definitive proxy or information statements incorporated by reference in Part
III of this Form 10-K or any amendment to this Form 10-K.                   [X]

      Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, or a non-accelerated filer. See definition of
"accelerated filer and large accelerated filer" in Rule 12b-2 of the Exchange
Act. (Check one):

Large Accelerated Filer [ ]   Accelerated Filer [ ]   Non-Accelerated Filer [X]

      Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Exchange Act).                      [ ] Yes [X] No

      The Registrant has no voting or non-voting common equity held by
non-affiliates.



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<PAGE>

                      DOCUMENTS INCORPORATED BY REFERENCE

                                     None.

                                 *     *     *


         This Annual Report on Form 10-K (the "Report") is filed with respect
to the trust entitled CWABS Asset-Backed Certificates Trust 2007-4 (the
"Issuing Entity") formed pursuant to the pooling and servicing agreement dated
as of March 1, 2007 (the "Pooling and Servicing Agreement") among CWABS, Inc.,
as depositor (the "Company"), Countrywide Home Loans, Inc., as sponsor and as
a seller (the "Sponsor" and a "Seller"), Park Sienna LLC, as a seller (a
"Seller"), Park Monaco Inc., as a seller (a "Seller"), Countrywide Home Loans
Servicing LP, as master servicer (the "Master Servicer"), and The Bank of New
York, as trustee (the "Trustee"), for the issuance of Asset-Backed
Certificates, Series 2007-4 (the "Certificates").



                                      3
<PAGE>

                                    PART I


Item 1.           Business.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 1A.          Risk Factors.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 1B.          Unresolved Staff Comments.

                  Not Applicable.

Item 2.           Properties.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 3.           Legal Proceedings.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 4.           Submission of Matters to a Vote of Security Holders.

                  Omitted as permitted by Instruction J to Form 10-K.



                                      4
<PAGE>

                                    PART II


Item 5.           Market for Registrant's Common Equity, Related Stockholder
                  Matters and Issuer Purchases of Equity Securities.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 6.           Selected Financial Data.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 7.           Management's Discussion and Analysis of Financial Condition
                  and Results of Operations.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 7A.          Quantitative and Qualitative Disclosures about Market Risk.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 8.           Financial Statements and Supplementary Data.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 9.           Changes in and Disagreements With Accountants on Accounting
                  and Financial Disclosure.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 9A.          Controls and Procedures.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 9B.          Other Information.

                  None.



                                      5
<PAGE>

                                   PART III


Item 10.          Directors, Executive Officers and Corporate Governance.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 11.          Executive Compensation.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 12.          Security Ownership of Certain Beneficial Owners and
                  Management and Related Stockholder Matters.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 13.          Certain Relationships and Related Transactions, and Director
                  Independence.

                  Omitted as permitted by Instruction J to Form 10-K.

Item 14.          Principal Accountant Fees and Services.

                  Omitted as permitted by Instruction J to Form 10-K.



                                      6
<PAGE>

                                    PART IV


Item 15.          Exhibits and Financial Statement Schedules.

                  (a)  (1)  Not applicable.

                       (2)  Not applicable.

                       (3)  The required exhibits are as follows:

                            o  Exhibit 3(i): Copy of Company's Certificate
                               of Incorporation (Filed as Exhibit 3.1 to
                               Registration Statement on Form S-3 (File No.
                               333-11095))

                            o  Exhibit 3(ii): Copy of Company's By-laws (Filed
                               as Exhibit 3.2 to Registration Statement on
                               Form S-3 (File No. 333-11095))

                            o  Exhibit 4: Pooling and Servicing Agreement
                               (Filed as part of the Current Report on Form
                               8-K filed on April 13, 2007 under the
                               Commission file number of the Issuing Entity)

                            o  Exhibit 31(ii): Rule 15d-14(d) Certification

                            o  Exhibit 33.1: Report on Assessment of
                               Compliance With Servicing Criteria for
                               Asset-Backed Securities for Countrywide
                               Financial Corporation

                            o  Exhibit 33.2: Report on Assessment of
                               Compliance With Servicing Criteria for
                               Asset-Backed Securities for the Trustee

                            o  Exhibit 34.1: Attestation Report on Assessment
                               of Compliance With Servicing Criteria for
                               Asset-Backed Securities of KPMG LLP on behalf
                               of Countrywide Financial Corporation

                            o  Exhibit 34.2: Attestation Report on Assessment
                               of Compliance With Servicing Criteria for
                               Asset-Backed Securities of KPMG LLP on behalf
                               of the Trustee

                            o  Exhibit 35: Servicer Compliance Statement of
                               the Master Servicer

                  (b)  See subparagraph (a)(3) above.

                  (c)  Not applicable.



                                      7
<PAGE>

                            ADDITIONAL INFORMATION


Item 1112(b) of Regulation AB.      Financial Information of Significant
                                    Obligors.

                  Not Applicable.

Item 1114(b)(2) of Regulation AB.   Financial Information of Significant
                                    Enhancement Providers.

                  Incorporated herein by reference to the consolidated
                  financial statements of Financial Security Assurance Inc.
                  and subsidiaries as of December 31, 2007 and December 31,
                  2006, and for each of the years in the three-year period
                  ended December 31, 2007, which are included as Exhibit 99.1
                  in the Annual Report on Form 10-K of Financial Security
                  Assurance Holdings Ltd., which was filed with the Securities
                  and Exchange Commission on March 20, 2008 (Securities and
                  Exchange Commission File No. 001-12644).

Item 1115(b) of Regulation AB.      Financial Information of Certain Entities
                                    Providing Derivative Instruments.

                  Not Applicable.

Item 1117 of Regulation AB.         Legal Proceedings.

                  None.

Item 1119 of Regulation AB.         Affiliations and Certain Relationships and
                                    Related Transactions.

                  The Sponsor, the Company, the Issuing Entity, the Sellers
                  and the Master Servicer are affiliated parties. There are no
                  other affiliated parties. There are currently no business
                  relationships, agreements, arrangements, transactions or
                  understandings between (a) the Sponsor, the Company or the
                  Issuing Entity and (b) the Trustee, Swiss Re Financial
                  Products Corporation or Financial Security Assurance Inc.,
                  or any of their affiliates, that were entered into outside
                  the ordinary course of business or that contain terms other
                  than would be obtained in an arm's length transaction with
                  an unrelated third party and that are material to the
                  investor's understanding of the Certificates. No such
                  business relationship, agreement, arrangement, transaction
                  or understanding has existed during the past two years.

Item 1122 of Regulation AB.         Compliance with Applicable Servicing
                                    Criteria.

                  See Exhibits 33.1, 33.2, 34.1 and 34.2 to this Form 10-K.

Item 1123 of Regulation AB.         Servicer Compliance Statement.

                  See Exhibit 35 to this Form 10-K.



                                      8
<PAGE>

                                  SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

         CWABS ASSET-BACKED CERTIFICATES TRUST 2007-4

                  By:     Countrywide Home Loans Servicing LP,
                          as Master Servicer

                          By:  Countrywide GP, Inc.

                               By:  /s/ Steve Bailey
                                    ------------------------------------
                               Name:  Steve Bailey
                               Title: Senior Managing Director,  Chief
                               Executive Officer Loan Administration
                               (Senior officer in charge of the servicing
                               function of Countrywide Home Loans Servicing LP)

                               Date:  March 27, 2008



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<PAGE>

         SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT
TO SECTION 15(d) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED
SECURITIES PURSUANT TO SECTION 12 OF THE ACT.

         No annual report, proxy statement, form of proxy or other proxy
soliciting material with respect to the Issuing Entity or the Depositor has
been, or will be, sent to security holders.



                                      10
<PAGE>

                                 EXHIBIT INDEX


Exhibit           Document
-------           --------

3(i)              Company's Certificate of Incorporation (Filed as Exhibit 3.1
                  to Registration Statement on Form S-3 (File No. 333-11095))*

3(ii)             Company's By-laws (Filed as Exhibit 3.2 to Registration
                  Statement on Form S-3 (File No. 333-11095)*

4                 Pooling and Servicing Agreement (Filed as part of the
                  Current Report on Form 8-K filed on April 13, 2007 under the
                  Commission file number of the Issuing Entity)*

31(ii)            Rule 15d-14(d) Certification

33.1              Report on Assessment of Compliance With Servicing Criteria
                  for Asset-Backed Securities for Countrywide Financial
                  Corporation

33.2              Report on Assessment of Compliance With Servicing Criteria
                  for Asset-Backed Securities for the Trustee

34.1              Attestation Report on Assessment of Compliance With
                  Servicing Criteria for Asset-Backed Securities of KPMG LLP
                  on behalf of Countrywide Financial Corporation

34.2              Attestation Report on Assessment of Compliance With
                  Servicing Criteria for Asset-Backed Securities of KPMG LLP
                  on behalf of the Trustee

35                Servicer Compliance Statement of the Master Servicer


____________

*        Incorporated herein by reference.



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