SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

                    Pursuant to Section 13 or 15(d) of the

                        Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): July 25, 2002

                                      CWA

                                  (Depositor)

         (Issuer in respect of Asset-Backed Securities, Series 2002-S1)

                (Exact name of registrant as specified in charter)

Delaware                      33-63714                      95-4449516
(State or other               (Commission File No.)         (I.R.S. Employer
    jurisdiction of                                         Identification No.)
    organization)



155 N. Lake Avenue, Pasadena, CA                            91110-7137
(Address of principal executive offices)                    (Zip Code)


Registrant's Telephone Number, including area code: (818)-304-4428

                                 Not Applicable
              (Former name, former address and former fiscal year,
                          if changed since last report)




Item 5.  Other Events

                                      CWA
                            Asset-Backed Securities
                                 Series 2002-S1

On July 25, 2002, The Bank of New York, as Trustee for CWA, Asset-Backed
Securities Series 2002-S1, made a monthly distribution to Certificate holders of
principal and/or interest pursuant to the Pooling and Servicing Agreement, dated
as of April 1, 2002, among CWA as Depositor, Countrywide Home Loans, Seller and
Master Servicer and The Bank of New York, as Trustee.

Item 7.  Financial Statements and Exhibits

                    (c) Exhibits

Exhibit No.                               Description

99                  Report  to  Holders  of  CWA, Asset-Backed Securities Series
                    2002-S1  relating  to the distribution date of July 25, 2002
                    prepared  by  The  Bank  of  New  York, as Trustee under the
                    Pooling and Servicing Agreement dated as of April 1, 2002.







                                   SIGNATURES

Pursuant  to the  requirements  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.

Dated: July 25, 2002


                                      CWA


                          By: /s/ Courtney Bartholomew
                              ------------------------------
                          Name:   Courtney Bartholomew
                                  Vice President
                                  The Bank of New York,
                                  as Trustee







                                 EXHIBIT INDEX



Exhibit


99                  Monthly Remittance Statement dated July 25, 2002


                             Payment Date: 07/25/02


          ------------------------------------------------------------
                             Countrywide Home Loans
                    Asset-Backed Securities, Series 2002-S1
          ------------------------------------------------------------



Class Information                                Current Payment Information

- ----------------------------------------------------------------------------------------------------------------------------------
                                 Beginning       Pass Thru     Principal       Interest      Total           Principal  Interest
Type       Class Code   Name     Cert. Bal.      Rate          Dist. Amt.      Dist. Amt.    Dist.           Losses     Shortfalls
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Senior                  A1        293,986,421.70    1.990000%    14,415,441.67    487,527.48   14,902,969.15       0.00       0.00
                        A2A        66,684,448.83    4.670000%     1,553,627.28    259,513.65    1,813,140.93       0.00       0.00
                        A2B        70,600,000.00    5.151000%             0.00    303,050.50      303,050.50       0.00       0.00
                        A3         49,900,000.00    5.877000%             0.00    244,385.25      244,385.25       0.00       0.00
                        A4         23,900,000.00    6.150000%             0.00    122,487.50      122,487.50       0.00       0.00
                        A5         56,200,000.00    5.960000%             0.00    279,126.67      279,126.67       0.00       0.00
                        AIO       595,920,870.53    3.758087%             0.00  1,866,273.60    1,866,273.60       0.00       0.00
Residual                AR                  0.00    5.000000%             0.00          0.00            0.00       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
Subordinate             M1         28,350,000.00    6.180000%             0.00    146,002.50      146,002.50       0.00       0.00
                        M2          6,300,000.00    6.695000%             0.00     35,148.75       35,148.75       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
Totals          -        -        595,920,870.53     -           15,969,068.95  3,743,515.89   19,712,584.84     -          -
- ----------------------------------------------------------------------------------------------------------------------------------
Class Information

- --------------------------------------------------------------------------------
                                             Ending Cert.          Unpaid
Type             Class Code     Name         Notional Bal.         Interest
- --------------------------------------------------------------------------------
Senior                          A1        279,570,980.02              0.00
                                A2A        65,130,821.56              0.00
                                A2B        70,600,000.00              0.00
                                A3         49,900,000.00              0.00
                                A4         23,900,000.00              0.00
                                A5         56,200,000.00              0.00
                                AIO       579,951,801.58              0.00
Residual                        AR                  0.00              0.00
- --------------------------------------------------------------------------------
Subordinate                     M1         28,350,000.00              0.00
                                M2          6,300,000.00              0.00
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Totals            -              -        579,951,801.58     -
- --------------------------------------------------------------------------------



                             Payment Date: 07/25/02


          ------------------------------------------------------------
                             Countrywide Home Loans
                    Asset-Backed Securities, Series 2002-S1
          ------------------------------------------------------------



Class Information                                Current Payment Information

                                                      Factors per $1,000

- ------------------------------------------------------------------------------------------------------------------------
                                   Beginning     Pass Thru    CUSIP       Principal     Interest    Ending Cert./
Type        Class Code    Name   Cert. Bal.(Face)  Rate       Numbers       Dist.         Dist.     Notional Bal.
- ------------------------------------------------------------------------------------------------------------------------
                                                                            
- ------------------------------------------------------------------------------------------------------------------------
Senior                     A1    293,986,421.70     1.990000% 126671PM2    44.389351      1.501239    860.880616
                           A2A    66,684,448.83     4.670000% 126671PS9    22.194675      3.707338    930.440308
                           A2B    70,600,000.00     5.151000% 126671PX8     0.000000      4.292500  1,000.000000
                           A3     49,900,000.00     5.877000% 126671PT7     0.000000      4.897500  1,000.000000
                           A4     23,900,000.00     6.150000% 126671PU4     0.000000      5.125000  1,000.000000
                           A5     56,200,000.00     5.960000% 126671PV2     0.000000      4.966667  1,000.000000
                           AIO   595,920,870.53     3.758087% 126671PW0     0.000000      2.962339    920.558269
Residual                   AR              0.00     5.000000% 126671PN0     0.000000      0.000000      0.000000
- ------------------------------------------------------------------------------------------------------------------------
Subordinate                M1     28,350,000.00     6.180000% 126671PP5     0.000000      5.150000  1,000.000000
                           M2      6,300,000.00     6.695000% 126671PQ3     0.000000      5.579167  1,000.000000
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------
Totals       -             -     595,920,870.53       -            -           -             -           -
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------





          ------------------------------------------------------------
                             Countrywide Home Loans
                    Asset-Backed Securities, Series 2002-S1
          ------------------------------------------------------------

- --------------------------------------------------------------------------------
                             COLLATERAL INFORMATION
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Prin balance       579,951,801.58   579,951,801.58
Loan count                  18073            18073
Avg loan rate           9.197347%             9.20
Prepay amount       14,885,640.83    14,885,640.83

- --------------------------------------------------------------------------------
                                FEES AND ADVANCES
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Master serv fees       234,765.57       234,765.57
Sub servicer fees      553,609.34       553,609.34
Trustee fees             4,469.41         4,469.41


Agg advances                  N/A              N/A
Adv this period         47,479.98        47,479.98

- --------------------------------------------------------------------------------
                          LOSSES & INSURANCE COVERAGES
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Realized losses              0.00             0.00
Cumulative losses            0.00             0.00

Coverage Amounts                           Total
- ----------------                           -----
Bankruptcy                   0.00             0.00
Fraud               12,600,002.00    12,600,002.00
Special Hazard               0.00             0.00


                         Aggregate Certificate Information
   -----------------------------------------------------------------------------
   Class            Aggregate           Aggregate                     Aggregate
   Type            Percentage           Prepay Pct.              End Cert. Bal.
   -----------------------------------------------------------------------------
   Senior           94.185470%           100.000000%            561,270,870.53
   -----------------------------------------------------------------------------
   Junior            5.814530%             0.000000%             34,650,000.00
   -----------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                          DELINQUENCY INFORMATION
- --------------------------------------------------------------------------------
Period                             Loan Count    Ending Stated Balance
- ------                             ----------    ---------------------
30 to 59 days                         133                 4,437,876.36
60 to 89 days                          11                   444,186.46
90 or more                              5                   151,397.31
Foreclosure                             0                         0.00

Totals:                               149                 5,033,460.13
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
                                REO INFORMATION
- --------------------------------------------------------------------------------
   REO Date        Loan Number     Ending Stated Balance          Book Value
   --------        -----------     ---------------------          ----------
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   Totals:                              0                            N/A

Current Total Outstanding Balance:                                      0.00
Current Total Outstanding Number of Loans:                                 0




- --------------------------------------------------------------------------------
                               OTHER INFORMATION
- --------------------------------------------------------------------------------
                                  Amount/Withdrawal     Total/Ending Bal.
                                  -----------------     -----------------
Available remittance amount           19,712,584.84         19,712,584.84
Principal remittance amount           15,969,068.95         15,969,068.95
Interest remittance amount             3,743,515.89          3,743,515.89