COVANTA ENERGY CORP

Q: Mar 31 2005

Q: Sep 30 2004

FY: Dec 31 2004

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

FY: Dec 31 2003

Q: Sep 30 2003

Q: Jun 30 2003

Q: Mar 31 2003

FY: Dec 31 2002

Q: Jun 30 2002

Q: Sep 30 2002

Q: Jun 30 2002

Q: Mar 31 2002

FY: Dec 31 2001

FY: Apr 1 2002

Q: Sep 30 2001

Q: Jun 30 2001

1.01,9.01

8.01,9.01

1.01,5.02,9.01

5,7

5,7

4,7

Changes in registrant's certifying accountant

5,7

7

2,7

5,7

3,7

5,7

5,7

5,7

5,7

5,7

5,7

5,7

5,7

Certification of termination of registration of a class of securities (Section 12(b))

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Withdrawal of a registration statement

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration of Securities on Exchange (amendment)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

No description available

No description available

Additional Information for Proxy Statement/ Votes

Additional proxy soliciting materials filed by a non-management party

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

Additional proxy soliciting materials filed by a non-management party

No description available

Required Information in Proxy Statement

GOLDMAN SACHS GROUP INC/

GOLDMAN SACHS GROUP INC/

GOLDMAN SACHS GROUP INC/

DIMENSIONAL FUND ADVISORS INC

GREENWAY PARTNERS L P

GREENWAY PARTNERS L P

FMR CORP

GREENWAY PARTNERS L P

GREENWAY PARTNERS L P

REICH & TANG ASSET MANAGEMENT LP

FMR CORP

GREENWAY PARTNERS L P

REICH & TANG ASSET MANAGEMENT LP

FMR CORP

DIMENSIONAL FUND ADVISORS INC

FMR CORP

FIDELITY INTERNATIONAL LTD

FIR TREE PARTNERS

GREENHUT OVERSEAS L L C

FMR CORP

Annual Report Scanned (Paper)

No description available

No description available

No description available

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

No description available

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

No description available

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

For applications for qualification of indentures under the Trust Indenture Act of 1939

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)