U.S. SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                  Form 12b-25

                          NOTIFICATION OF LATE FILING

[X]  FORM 10-KSB for period ending 4/30/98

                         Part I - Registrant Information

Full Name of Registrant:                  American Bio Medica Corporation
Former name if applicable:                Not applicable
Address of Principal Executive Office:    300 Fairview Avenue
                                          Hudson, New York 12534

                        Part II - Rules 12b-25(b) and (c)

     If the subject  report could not be filed  without  unreasonable  effort or
expense  and  the  registrant  seeks  relief  pursuant  to Rule  12b-25(b),  the
following should be completed.

[X]   (a) The reasons described in reasonable detail in Part III of this form
could not be eliminated without unreasonable effort or expense

                              Part III - Narrative

     State below in  reasonable  detail the reasons why Form 10-KSB could not be
filed within the prescribed period:

     The subject form 10-KSB cannot be timely filed without  unreasonable effort
or  expense  because  of a delay by the  Company's  new  auditors  in  receiving
confirmations of financial information.

                          Part IV - Other Information

(1)  Name  and  telephone  number  of  person  to  contact  in  regard  to  this
     notification:

    John F. Murray, Chief Financial Officer                  800-227-1243 

(2)  Have all other periodic  reports  required under section 13 or 15(d) of the
     Securities Exchange Act of 1934 or Section 30 of the Investment Company Act
     of 1940 during the preceding 12 months or for such shorter  period that the
     registrant  was required to file such reports been filed:  If the answer is
     no, identify report.     [X] Yes

(3)  Is it anticipated that any significant change in results of operations from
     the corresponding  period for the last fiscal year will be reflected by the
     earnings  statements  to be  included  in the  subject  report  or  portion
     thereof?     [X] No



Date:  July 28, 1998          American Bio Medica Corporation 

                              By: /s/Stan Cipkowski
                                  -------------------
                                  Stan Cipkowski,
                                    President