EXHIBIT 31.1/EXHIBIT 31.2


RULE 13a-14(a)/15d-14(a) CERTIFICATION


I,
Melissa A. Waterhouse, certify that:





1. I
have reviewed this annual report on Form 10-K of American Bio
Medica Corporation;





2.
Based on my knowledge, this annual report does not contain any
untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading
with respect to the period covered by this annual
report;





3.
Based on my knowledge, the financial statements, and other
financial information included in this annual report, fairly
present in all material respects the financial condition, results
of operations and cash flows of the registrant as of, and for, the
periods presented in this annual report;





4. The
registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal
controls over financial reporting (as defined in Exchange Act Rules
13a-15(f) and 15d-15(f)) for the small business issuer and
have:





a)
designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the
period in which this annual report is being prepared;





b)
designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally
accepted accounting principles; and





c)
evaluated the effectiveness of the registrant’s disclosure
controls and procedures and presented in this annual report our
conclusions about the effectiveness of the disclosure controls and
procedures, as of the end of the period covered by this annual
report based on such evaluation; and





d)
Disclosed in this annual report any change in the
registrant’s internal control over financial reporting that
occurred during the registrant’s most recent fiscal quarter
(the small business issuer’s fourth fiscal quarter in the
case of an annual report) that has materially affected, or is
reasonably likely to materially affect, the registrant’s
internal control over financial reporting; and





5. The
registrant’s other certifying officers and I have disclosed,
based on our most recent evaluation of internal control over
financial reporting, to the registrant’s auditors and the
audit committee of the registrant’s board of directors (or
persons performing the equivalent functions):





a) all
significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant’s
ability to record, process, summarize and report financial
information; and





b) any
fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant’s
internal control over financial reporting.





/s/ Melissa A. Waterhouse


Melissa
A. Waterhouse


Chief
Executive Officer (Principal Executive Officer)


Principal
Financial Officer


Principal
Accounting Officer





Date:
July 24, 2020