-----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,
 OHPS7yDNwQVn5BbEqFfjize/chJZd4m/zkociJQo3MOjGkHYlR/q+8ro2Anb500l
 inKY/OadfLgA17ojid1xnQ==

<SEC-DOCUMENT>0001293788-04-000022.txt : 20041221
<SEC-HEADER>0001293788-04-000022.hdr.sgml : 20041221
<ACCEPTANCE-DATETIME>20041221144245
ACCESSION NUMBER:		0001293788-04-000022
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20041221
FILED AS OF DATE:		20041221
DATE AS OF CHANGE:		20041221

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Macquarie Infrastructure CO Trust
		CENTRAL INDEX KEY:			0001289788
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-PETROLEUM & PETROLEUM PRODUCTS (NO BULK STATIONS) [5172]
		IRS NUMBER:				206196808
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 FIFTH AVENUE, 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
		BUSINESS PHONE:		212-548-6555

	MAIL ADDRESS:	
		STREET 1:		600 FIFTH AVENUE, 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Macquarie Infrastructure Assets Trust
		DATE OF NAME CHANGE:	20040510

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brown Norman H Jr
		CENTRAL INDEX KEY:			0001309097

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32385
		FILM NUMBER:		041216873

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		212-548-6538

	MAIL ADDRESS:	
		STREET 1:		C/O MACQUARIE INFRASTRUCTURE COMPANY LLC
		STREET 2:		600 FIFTH AVENUE, 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-12-21</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001289788</issuerCik>
        <issuerName>Macquarie Infrastructure CO Trust</issuerName>
        <issuerTradingSymbol>MIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001309097</rptOwnerCik>
            <rptOwnerName>Brown Norman H Jr</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MACQUARIE INFRASTRUCTURE COMPANY LLC</rptOwnerStreet1>
            <rptOwnerStreet2>600 FIFTH AVENUE, 21ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>No securities beneficially owned</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <remarks>Exhibit List
- -------------
Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Heidi Mortensen, by power of attorney</signatureName>
        <signatureDate>2004-12-21</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poabrown.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
                                                                      Exhibit 24


                                POWER OF ATTORNEY


              The undersigned, Norman H. Brown, Jr. (the "Undersigned"), does
hereby nominate, constitute and appoint each of Heidi Mortensen and Peter Stokes
(individually, an "Attorney-in-Fact") as the Undersigned's true and lawful agent
and attorney-in-fact, with full power and authority of substitution and
revocation and to act singly hereunder, in the discretion of such
Attorney-in-Fact, in the name of and on behalf of the Undersigned as fully as
the Undersigned could if the Undersigned were present and acting in person, to
perform any and all acts that may be necessary or desirable to complete, make
and execute any and all required or voluntary filings (the "Filings") under
Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and the applicable rules and regulations thereunder, with the Securities
and Exchange Commission, the New York Stock Exchange, Macquarie Infrastructure
Company LLC (the "Company"), and any other person or entity to which such
filings may be required under Section 16(a) of the Exchange Act as a result of
the Undersigned's position as an officer and/or director of the Company or the
Undersigned's "Beneficial Ownership" (within the meaning of Section 16(a) of the
Exchange Act) of more than ten percent of any class of equity securities of the
Company.

              The Undersigned hereby consents to, ratifies and confirms all that
the said Attorney-in-Fact shall do or cause to be done by virtue of this Power
of Attorney. The Undersigned hereby acknowledges that the Attorney-in-Fact, in
serving in such capacity at the request of the Undersigned, is not assuming, nor
is the Company assuming, any of the Undersigned's responsibilities to comply
with Section 16 of the Exchange Act.

              This Power of Attorney shall remain in full force and effect from
this date forward for the term of the Undersigned's service as an officer and/or
director of the Company or the Undersigned's Beneficial Ownership of more than
ten percent of any class of equity securities of the Company and for such time
thereafter as may be necessary to make any such Filings, unless earlier revoked
or modified by the Undersigned in writing. The Undersigned hereby revokes all
prior powers of attorney relating to the foregoing acts.

              IN WITNESS WHEREOF, the Undersigned has hereunto signed this Power
of Attorney this 14th day of December, 2004.


                                       By:  /s/ Norman H. Brown, Jr.
                                          ------------------------------
                                          Name: Norman H. Brown, Jr.


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
