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    ACCESSION NUMBER:		0001193125-17-299802
    CONFORMED SUBMISSION TYPE:	DFAN14A
    PUBLIC DOCUMENT COUNT:		14
    FILED AS OF DATE:		20170929
    DATE AS OF CHANGE:		20170929
    EFFECTIVENESS DATE:		20170929

    SUBJECT COMPANY:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AUTOMATIC DATA PROCESSING INC
    		CENTRAL INDEX KEY:			0000008670
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
    		IRS NUMBER:				221467904
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0630

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-05397
    		FILM NUMBER:		171112458

    	BUSINESS ADDRESS:
    		STREET 1:		ONE ADP BOULVARD
    		CITY:			ROSELAND
    		STATE:			NJ
    		ZIP:			07068
    		BUSINESS PHONE:		9739745000

    	MAIL ADDRESS:
    		STREET 1:		ONE ADP BOULEVARD
    		CITY:			ROSELAND
    		STATE:			NJ
    		ZIP:			07068

    FILED BY:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Pershing Square Capital Management, L.P.
    		CENTRAL INDEX KEY:			0001336528
    		IRS NUMBER:				383694136
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

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    	BUSINESS ADDRESS:
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    		STREET 2:		42ND FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    		BUSINESS PHONE:		212-813-3700

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    		STREET 2:		42ND FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
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