Company: ADP
Filing Date: 2025-05-07
Form Type: 424B2
Source: 0001193125-25-114878
Chunk: 53

Company: AUTOMATIC DATA PROCESSING INC
Filing Date: 2025-05-07
Form: 424B2
Chunk 53
---
 District of Columbia and shall expressly assume and such successor corporation or person expressly assumes our obligations on the debt securities and under the indenture; and                                     |

| • |     | immediately after giving effect to such transaction, no event of default or event, which after notice or lapse of 
 time or both would become an event of default, shall have occurred and be continuing.                             |

Any such successor, acquiror or lessor of such assets will succeed to every right and power of ADP under the indenture. Thereafter, except in the case of a lease, the predecessor or transferor of such assets will be relieved of all obligations and covenants under the indenture and the debt securities. (sections 10.01 and 10.02) This covenant would not apply to any recapitalization transaction, a change of control of ADP or a highly leveraged transaction, unless the transaction or change of control were structured to include a merger or consolidation or conveyance, transfer or lease of all or substantially all of our properties and assets as set forth in the indenture. Events of Default Under the Indenture The following are events of default under the indenture with respect to any series of debt securities issued:

| • |     | we fail to pay interest when due and such failure continues for 30 days, unless the time for payment has been 
 properly extended or deferred in accordance with the terms of the particular series;                          |

| • |     | we fail to pay the principal or any premium when due, unless the maturity has been properly extended in 
 accordance with the terms of the particular series;                                                     |

| • |     | we fail to observe or perform any other covenant or agreement contained in the debt securities or the indenture,                                                                                                                                       
 other than a covenant or agreement specifically relating to another series of debt securities, and such failure continues for 90 days after we receive a notice of default from the trustee or from the holders of at least 25% in aggregate principal 
 amount of the outstanding debt securities of all of the affected series;                                                                                                                                                                               |

| • |     | certain events of bankruptcy or insolvency, whether voluntary or not; and |

| • |     | any additional events of default that may be established with respect to a particular series of debt securities 
 under the indenture, as may be specified in the applicable prospectus supplement. (section 6.01)                |

If, with regard to any series, an event of default resulting from a failure to pay principal, any