AECOM Technology Corporation Employee Stock Purchase …

1 Updated January 2011. AECOM Technology Corporation Employee Stock Purchase plan Services United States An important benefit for you Through the AECOM Technology Corporation Employee Stock to sell those shares, if you choose. You must have an LIIA in Purchase plan (ESPP), you can Purchase shares of AECOM order for shares to be deposited into your account. For more common Stock at a discount. information about opening your LIIA, see page 5. Please be aware that enrolling in the ESPP and opening your brokerage This brochure summarizes some of the features of the ESPP, account are two separate transactions, but they can both be as well as services provided by Merrill Lynch. You should completed in a single online session. review the prospectus and plan documents carefully for more detailed information about the ESPP's operation.

2 In the event If you are a control person, Section 16 Insider, or an individual of a conflict with this brochure, the prospectus and plan subject to a pre-clearance policy ( , executive officer or documents will govern. AECOM has informed Merrill Lynch that director), you must contact AECOM 's Legal Department at the plan prospectus is available on myAECOM in the North 1 (213) 593-8038 before conducting any transactions. If you are America/Human Resources/Retirement Benefits section. subject to AECOM 's Insider Trading windows, you will have full inquiry access to Benefits OnLine , but will need to contact Merrill Lynch is the service provider for the ESPP. During any Merrill Lynch by telephone as described on page 5 to enroll enrollment period, you can get started by visiting the in the ESPP or open your LIIA.

3 Further, AECOM has instructed Merrill Lynch website at Merrill Lynch not to accept enrollment requests during closed trading windows. Please consult AECOM 's Insider Trading Your Merrill Lynch brokerage account Policy, and call AECOM 's Legal Department at 1 (213) 593-8038. Opening a Merrill Lynch brokerage account, called a Limited or send an e-mail to if you Individual Investor Account (LIIA), enables you to receive have any questions. AECOM shares through the ESPP in such an account, and What's Inside Page How to participate in the ESPP plan Merrill Lynch services ..4. To enroll Making changes to your Selling shares Accessing plan 11. Service This brochure provides a general description of Merrill Lynch's ESPP services. Your ESPP participation is subject to the terms of your company's plan , any agreement between you and your company covering the plan , and the prospectus provided to you by your company.

4 Any transactions in connection with your plan in your Merrill Lynch brokerage account are subject to the terms and conditions of that account. This brochure does not constitute an offer or invitation to buy any securities. Any offer to buy securities from your company would be made only by a prospectus in accordance with the Securities Act of 1933 as amended. Refer to the accompanying materials for information provided by your company about your specific program. Merrill Lynch Wealth Management makes available products and services offered by Merrill Lynch, Pierce, Fenner & Smith Incorporated ( MLPF&S ) and other subsidiaries of Bank of America Corporation ( BAC ). MLPF&S is a registered broker-dealer, Member SIPC and a wholly owned subsidiary of BAC.

5 Investment Products: Are Not FDIC Insured Are Not Bank Guaranteed May Lose Value AECOM ESPP 1. How to participate in the ESPP. Participating in the ESPP involves four steps: Enrollment and Offering Periods Step 1. A. ECOM makes an offer to eligible employees, through a prospectus, to Purchase shares through The enrollment period is a period of time during which you the ESPP. can enroll for the upcoming offering period. Step 2. G. enerally, there are six enrollment periods during The offering period occurs every two months, during the calendar year, each lasting approximately which your ESPP contributions are made through payroll. two months. When you enroll, you will make Your total contribution amount will be tracked on your your contribution rate election.

6 The date of your paystub. At the end of the offering period, your total enrollment will determine the offering period to contributions will be used to Purchase AECOM common which your contributions will be credited. Once Stock at a discount from the fair market value. enrolled, you do not need to re-enroll during future enrollment periods. Your participation will continue automatically until you elect to change your contributions or cancel your participation within an offering period. Step 3. O. nce enrolled, you contribute a percentage of your eligible compensation to the ESPP through after-tax payroll deductions during an offering period, which generally lasts approximately two months. Eligible compensation includes base salary or base wages, plus all overtime pay received from the company, but excludes any bonus compensation.

7 Your total contributions during the offering period will be tracked on your paystub, not on the Merrill Lynch website. Step 4. A. t the end of each offering period, AECOM uses your accumulated contributions to Purchase shares of AECOM common Stock at a discount from the fair market value on behalf of you as a participating Employee . This occurs automatically. Fair market value is defined as the closing price on the New York Stock Exchange on the last trading day of the offering period. 2 AECOM ESPP. ESPP timeline To participate in the ESPP, please take note of the following timeline and your role in making an election: Feature Description Enrollment period Period for making your contribution election, or to reduce or increase your contribution rate Offering period Period during which contributions are deducted from payroll Making changes during the offering period Period for reducing or canceling your contributions Purchase date Date on which shares will be purchased on your behalf; occurs on or around the last day of an offering period Receiving your purchased AECOM shares Approximate date when shares will be deposited in your Merrill Lynch brokerage account.

8 Generally, during the first week after the end of the offering period See page 6 for information about enrolling in the ESPP online. Enrollment Period > Offering Period > Purchase Date > Shares deposited in your Merrill Lynch brokerage account AECOM ESPP 3. plan features This page summarizes certain features of the AECOM ESPP If your contributions exceed $25,000 worth of Stock or as they relate to Merrill Lynch's services. These features are could Purchase more than 1,300 shares per offering period, more fully described in the plan prospectus and other plan then only the amount of Stock that does not exceed these documents. limits will be purchased on your behalf, and any residual cash will be returned to you through payroll as soon as Eligibility administratively possible.

9 You are eligible to participate in the ESPP if you work at least 20 hours a week and are 18 years of age or older. Contract, AECOM makes available a certain number of shares for temporary, part-time variable employees and intern staff are Purchase through the ESPP. If the total number of shares of not eligible to participate in the plan . common Stock to be purchased through the plan exceeds the number of shares available for Purchase , the available Contributions shares will be allocated on a pro-rata basis and any residual Contributions can be made only during an offering cash will be returned to you through payroll as soon as period. You may contribute a percentage of your eligible administratively possible. compensation to the ESPP, up to plan and IRS limits.

10 Your eligible compensation includes base salary or base wages, Canceling your contributions prior to Stock Purchase plus all overtime pay received from the company. Bonus Canceling contributions to the ESPP is allowed prior to the compensation is not considered eligible compensation. No end of the offering period. In this case, deductions will end as interest is earned on contributions. Your contributions are soon as administratively possible. For contributions already subject to the annual IRS contribution limit of $25,000. made, you can elect to have these returned to you through payroll or used to Purchase shares at the end of the current Contribution rate changes offering period. No interest is earned on contributions. If Your contributions will continue during each subsequent you cancel contributions, you cannot re-enroll for the same offering period unless you make an alternative election offering period.