-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EKTHrEtvfcudLC6Z5hAYYum6jyKVlV261KGp6012h0gSInMjYKhz+WpNaHGCeSKI
 3pH5wCdqsdktyP4LEmgC3w==

<SEC-DOCUMENT>9999999995-10-003513.txt : 20101210
<SEC-HEADER>9999999995-10-003513.hdr.sgml : 20101210
<ACCEPTANCE-DATETIME>20101210001521
ACCESSION NUMBER:		9999999995-10-003513
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20101209
DATE AS OF CHANGE:		20101210
EFFECTIVENESS DATE:		20101209

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AUTHENTIDATE HOLDING CORP
		CENTRAL INDEX KEY:			0000885074
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				141673067
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-170760
		FILM NUMBER:		101243563

	BUSINESS ADDRESS:	
		STREET 1:		CONNELL CORPORATE CENTER
		STREET 2:		300 CONNELL DRIVE, 5TH FLOOR
		CITY:			BERKELEY HEIGHTS
		STATE:			NJ
		ZIP:			07922
		BUSINESS PHONE:		9087871700

	MAIL ADDRESS:	
		STREET 1:		CONNELL CORPORATE CENTER
		STREET 2:		300 CONNELL DRIVE, 5TH FLOOR
		CITY:			BERKELEY HEIGHTS
		STATE:			NJ
		ZIP:			07922

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BITWISE DESIGNS INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2010-12-09</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>09:00:00</finalEffectivenessDispTime>
        <form>S-3</form>
        <filer>
            <cik>0000885074</cik>
            <entityName>AUTHENTIDATE HOLDING CORP</entityName>
            <fileNumber>333-170760</fileNumber>
        </filer>
    </effectiveData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----