EXHIBIT 24




                         AUTOMATIC DATA PROCESSING, INC.


                          Authorization and Designation
                                to Sign and File
                           Section 16 Reporting Forms


      The undersigned, PETER BISSON, a director of Automatic Data Processing,
Inc., a Delaware corporation (the "Company"), does hereby authorize and
designate DAVID KWON, DOROTHY WISNIOWSKI and MICHAEL A. BONARTI to sign and
file on my behalf any and all Forms 3, 4, 5 and 144 relating to equity
securities of the Company pursuant to the requirements of Section 16 of
the Securities Exchange Act of 1934 ("Section 16"). This authorization,
unless earlier revoked by the undersigned in writing, shall be valid until
the undersigned's reporting obligations under Section 16 with respect to
equity securities of the Company shall cease.


                                       /s/ Peter Bisson
                                    -----------------------
                                     PETER BISSON


Date signed:  October 20, 2021