ATC GROUP SERVICES INC /DE/

3

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-K

General form for quarterly reports under Section 13 or 15(d)

5

5

FILED AS OF DATE: 19981215

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

Prospectus filed under Rule 424(b)(1)

Registration statement under Securities Act of 1933 (amendment)

Annual report pursuant to Section 13 or 15(d)

Registration statement under Securities Act of 1933

No description available

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

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

No description available

No description available

No description available

No description available

No description available

No description available

No description available

General form for quarterly reports under Section 13 or 15(d)

No description available

No description available

No description available

5,7

5,7

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

5

Definitive Proxy Statement

7

Prospectus Supplement for Primary Offering

Post-effective amendment to a registration statement

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

7

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

Annual report pursuant to Section 13 or 15(d) (amendment)

Annual report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Preliminary Proxy Statement

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

Current report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

Current report pursuant to Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

2,7

General form for quarterly reports under Section 13 or 15(d) (amendment)

2,7

Definitive Proxy Statement

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Prospectus Supplement for Primary Offering

No description available

No description available

No description available

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Current report pursuant to Section 13 or 15(d)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

No description available

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)