The Notes will have the terms specified in this term sheet as supplemented by the documents indicated herein under “Additional Note Terms” (together the “Note Prospectus”). Investing in the Notes involves a number of risks. See “ Risk Factors” and “Additional Risk Factor” on page TS-5 of this term sheet and beginning on page PS-4 of product supplement ARN-4.

In connection with this offering, each of Merrill Lynch, Pierce, Fenner & Smith Incorporated and its broker-dealer affiliate First Republic Securities Company, LLC is acting in its capacity as a principal.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this Note Prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

*Depending on the date the Notes are priced for initial sale to the public (the “Pricing Date”), which may be in March or April 2008, the settlement date may occur in March or April 2008 and the maturity date may occur in May or June 2009. Any reference in this term sheet to the month in which the settlement date or maturity date will occur is subject to change as specified above.

“Accelerated Return Notes^SM” is a service mark of Merrill Lynch & Co., Inc.

“Standard & Poor’s^®”, “Standard & Poor’s 500”, “S&P 500^®” and S&P^® are trademarks of The McGraw Hill Companies, Inc. and have been licensed for use by Merrill Lynch, Pierce, Fenner & Smith Incorporated and Merrill Lynch & Co., Inc. is an authorized sublicensee.

Merrill Lynch & Co.

March        , 2008

Summary

The Accelerated Return Notes^SM Linked to the Health Care Select Sector Index due June , 2009 (the “Notes”) are senior, unsecured debt securities of Merrill Lynch & Co., Inc. that provide a leveraged return for investors, subject to a cap, if the level of the Health Care Select Sector Index (the “Index”) increases moderately from the Starting Value of the Index, determined on the Pricing Date, to the Ending Value of the Index, determined on Calculation Days shortly prior to the maturity date of the Notes. Investors must be willing to forego interest payments on the Notes and willing to accept a return that is capped or a repayment that is less, and potentially significantly less, than the original public offering price of the Notes.

TS-2        

Hypothetical Payout Profile

		This graph reflects the hypothetical returns on the Notes, assuming a Capped Value of 14%, the midpoint of the range of 12% and 16%. The green line reflects the hypothetical returns on the Notes, while the dotted gray line reflects the hypothetical returns of an investment in the Index excluding dividends.   This graph has been prepared for purposes of illustration only. Your actual return will depend on the actual Ending Value, Capped Value and the term of your investment.

Hypothetical Payments at Maturity

Examples

Set forth below are three examples of payment at maturity calculations, assuming a hypothetical Starting Value of 336.48, the closing level of the Index on February 19, 2008, and a Capped Value of $11.40, the midpoint of the range of $11.20 and $11.60.

Example 1—The hypothetical Ending Value is 80% of the hypothetical Starting Value:

Hypothetical Starting Value: 336.48

Hypothetical Ending Value: 269.18

Payment at maturity (per unit) = $8.00

Example 2—The hypothetical Ending Value is 103% of the hypothetical Starting Value:

Hypothetical Starting Value: 336.48

Hypothetical Ending Value: 346.57

Payment at maturity (per unit) = $10.90

Example 3—The hypothetical Ending Value is 120% of the hypothetical Starting Value:

Hypothetical Starting Value: 336.48

Hypothetical Ending Value: 403.78

Payment at maturity (per unit) = $11.40         (Payment at maturity cannot be greater than the Capped Value)

TS-3        

The following table illustrates, for a hypothetical Starting Value of 336.48 (the closing level of the Index on February 19, 2008) and a range of hypothetical Ending Values of the Index:

The table below assumes a Capped Value of $11.40, the midpoint of the range of $11.20 and $11.60.

The above figures are for purposes of illustration only. The actual amount received by you and the resulting total and pretax annualized rates of return will depend on the actual Starting Value, Ending Value, Capped Value and term of your investment.

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Risk Factors

An investment in the Notes involves significant risks. The following is a list of certain of the risks involved in investing in the Notes. You should carefully review the more detailed explanation of risks relating to the Notes in the “Risk Factors” sections included in the product supplement and MTN prospectus supplement identified below under “Additional Note Terms”. We also urge you to consult your investment, legal, tax, accounting and other advisers before you invest in the Notes.

Additional Risk Factor

MLPF&S, acting as the Index Compilation Agent, will determine the composition the Select Sector Indices after consultation with Standard & Poor’s. The stocks included in each Select Sector Index, including the Health Care Select Sector Index, are selected by MLPF&S (the “Index Compilation Agent”). The Index Compilation Agent, after consultation with Standard & Poor’s (“S&P”), assigns a company’s stock to a particular Select Sector Index on the basis of the company’s sales and earnings composition and the sensitivity of the company’s stock price and business results to the common factors that affect other companies in each Select Sector Index. S&P has sole control over the removal of stocks from the S&P 500 Index and the selection of replacement stocks to be added to the S&P 500 Index. However, S&P plays only a consulting role in the Select Sector Index assignment of the S&P 500 Index component stocks, which is the sole responsibility of the Index Compilation Agent. The Index Compilation Agent will compile the Select Sector Indices without regard to the Notes. The Index Compilation Agent has no obligation to take the interests of the Note holders into consideration in compiling the Select Sector Indices, including when compiling the Health Care Select Sector Index.

Investor Considerations

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Other Provisions

We may deliver the Notes against payment therefor in New York, New York on a date that is greater than three business days following the Pricing Date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in three business days, unless the parties to any such trade expressly agree otherwise. Accordingly, if the initial settlement on the Notes occurs more than three business days from the Pricing Date, purchasers who wish to trade Notes more than three business days prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

If you place an order to purchase these offered securities, you are consenting to each of MLPF&S and its broker-dealer affiliate First Republic Securities Company, LLC acting as a principal in effecting the transaction for your account. MLPF&S is acting as an underwriter and/or selling agent for this offering and will receive underwriting compensation from the issuer of the securities.

Supplement to the Plan of Distribution

MLPF&S and First Republic Securities Company, LLC, each a broker-dealer subsidiary of ML&Co., are members of the Financial Industry Regulatory Authority, Inc. (formerly the National Association of Securities Dealers, Inc. (the “NASD”)) and will participate in the distribution of the Notes. Accordingly, offerings of the Notes will conform to the requirements of NASD Rule 2720.

MLPF&S and First Republic Securities Company, LLC may use this Note Prospectus for offers and sales in secondary market transactions and market-making transactions in the Notes. MLPF&S and First Republic Securities Company, LLC may act as principal or agent in these transactions, and any such sales will be made at prices related to prevailing market prices at the time of the sale.

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The Index

All disclosure contained in this term sheet regarding the Index, including, without limitation, its make-up, method of calculation and changes in its components has been derived from publicly available information prepared by Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. (“Standard & Poor’s” or “S&P”). ML&Co. and MLPF&S have not independently verified and make no representation as to the accuracy or completeness of such information. None of ML&Co., the calculation agent and MLPF&S accepts any responsibility for the calculation, maintenance or publication of the Index or any successor index.

The Select Sector Indices

The Select Sector Indices are sub-indices of the S&P 500 Index. Each stock in the S&P 500 Index is allocated to only one Select Sector Index, and the combined companies of the nine Select Sector Indexes represent all of the companies in the S&P 500 Index. The industry indexes are sub-categories within each Select Sector Index and represent a specific industry segment of the overall Select Sector Index. The nine Select Sector Indices, with the approximate percentage of the market capitalization of the S&P 500 Index included in each sector as of January 31, 2008 indicated in parentheses, are: Consumer Discretionary (8.8%); Consumer Staples (10.3%); Energy (12.3%); Financials (18.6%); Health Care (12.1%); Industrials (11.7%); Technology (19.1%); Materials (3.4%); and Utilities (3.6%).

Each Select Sector Index was developed and is maintained in accordance with the following criteria:

Each Select Sector Index is calculated using the same methodology utilized by S&P in calculating the S&P 500 Index, using a base–weighted aggregate methodology. The daily calculation of each Select Sector Index is computed by dividing the total market value of the companies in the Select Sector Index by a number called the index divisor.

The Index Compilation Agent at any time may determine that a Component Stock which has been assigned to one Select Sector Index has undergone such a transformation in the composition of its business that it should be removed from that Select Sector Index and assigned to a different Select Sector Index. In the event that the Index Compilation Agent notifies ISG that a Component Stock’s Select Sector Index assignment should be changed, the AMEX will disseminate notice of the change following its standard procedure for announcing index changes and will implement the change in the affected Select Sector Indexes on a date no less than one week after the initial dissemination of information on the sector change to the maximum extent practicable. It is not anticipated that Component Stocks will change sectors frequently.

Component Stocks removed from and added to the S&P 500 Index will be deleted from and added to the appropriate Select Sector Index on the same schedule used by S&P for additions and deletions from the S&P 500 Index insofar as practicable.

The Health Care Select Sector Index

The Health Care Select Sector Index (IXV) is a modified market capitalization-based index intended to track the movements of companies that are components of the S&P 500 Index and are involved in health care services. Health care services include pharmaceuticals, health care providers and services, health care equipment and supplies, biotechnology, life sciences tools and services and health care technology. The Health Care Select Sector Index, which serves as the benchmark for the Health Care Select Sector SPDR Fund (XLV), was established with a value of 250.00 on June 30, 1998.

Of the companies included in the S&P 500 Index, 51 are included in the Health Care Select Sector Index. These companies and their respective weights as of February 21, 2008 are as follows:

TS-7        

The following graph sets forth the historical performance of the Health Care Select Sector Index in the period from January 2003 through January 2008. This historical data on the Health Care Select Sector Index is not necessarily indicative of the future performance of the Health Care Select Sector Index or what the value of the Notes may be. Any historical upward or downward trend in the level of the Health Care Select Sector Index during any period set forth below is not an indication that the Health Care Select Sector Index is more or less likely to increase or decrease at any time over the term of the Notes. On February 19, 2008, the closing level of the Health Care Select Sector Index was 336.48.

TS-8        

Certain U.S. Federal Income Taxation Considerations

Set forth below is a summary of certain U.S. federal income tax considerations relating to an investment in the Notes. The following summary is not complete and is qualified in its entirety by the discussion under the section entitled “United States Federal Income Taxation” in the accompanying product supplement ARN-4 and MTN prospectus supplement, which you should carefully review prior to investing in the Notes.

General. There are no statutory provisions, regulations, published rulings or judicial decisions addressing or involving the characterization and treatment, for United States federal income tax purposes, of the Notes or securities with terms substantially the same as the Notes. Accordingly, the proper United States federal income tax characterization and treatment of the Notes is uncertain. Pursuant to the terms of the Notes, ML&Co. and every holder of a Note agree (in the absence of an administrative determination, judicial ruling or other authoritative guidance to the contrary) to characterize and treat a Note for all tax purposes as a pre-paid cash-settled forward contract linked to the value of the Index. Due to the absence of authorities that directly address instruments that are similar to the Notes, significant aspects of the United States federal income tax consequences of an investment in the Notes are not certain, and no assurance can be given that the Internal Revenue Service (the “IRS”) or the courts will agree with the characterization and tax treatment described above. Accordingly, prospective purchasers are urged to consult their own tax advisors regarding the United States federal income tax consequences of an investment in the Notes (including alternative characterizations and tax treatments of the Notes) and with respect to any tax consequences arising under the laws of any state, local or foreign taxing jurisdiction.

Payment on the Maturity Date. Assuming that the Notes are properly characterized and treated as pre-paid cash-settled forward contracts linked to the value of the Index, upon the receipt of cash on the maturity date of the Notes, a U.S. Holder (as defined in the accompanying product supplement ARN-4) will recognize gain or loss. The amount of such gain or loss will be the extent to which the amount of the cash received differs from the U.S. Holder’s tax basis in the Note. A U.S. Holder’s tax basis in a Note generally will equal the amount paid by the U.S. Holder to purchase the Note. It is uncertain whether any such gain or loss would be treated as ordinary income or loss or capital gain or loss. Absent a future clarification in current law (by an administrative determination, judicial ruling or otherwise), where required, ML&Co. intends to report any such gain or loss to the IRS in a manner consistent with the treatment of such gain or loss as capital gain or loss. If such gain or loss is treated as capital gain or loss, then any such gain or loss will be short-term or long-term capital gain or loss, depending upon the U.S. Holder’s holding period for the Note as of the maturity date.

Sale or Exchange of the Notes. Assuming that the Notes are properly characterized and treated as pre-paid cash-settled forward contracts linked to the value of the Index, upon a sale or exchange of a Note prior to the maturity date of the Notes, a U.S. Holder will generally recognize capital gain or loss in an amount equal to the difference between the amount realized on such sale or exchange and such U.S. Holder’s tax basis in the Note so sold or exchanged. Any such capital gain or loss will be short-term or long-term capital gain or loss, depending upon the U.S. Holder’s holding period for the Note as of the date of such sale or exchange.

Possible Future Tax Law Changes. On December 7, 2007, the IRS released a notice that could possibly affect the taxation of holders of the Notes. According to the notice, the IRS and the U.S. Department of the Treasury (the “Treasury Department”) are actively considering, among other things, whether the holder of an instrument having terms similar to the Notes should be required to accrue either ordinary income or capital gain on a current basis, and they are seeking comments on the subject. It is not possible to determine what guidance they will ultimately issue, if any. It is possible, however, that under such guidance, holders of instruments having terms similar to the Notes will ultimately be required to accrue income currently and this could be applied on a retroactive basis. The IRS and the Treasury Department are also considering other relevant issues, including whether additional gain or loss from such instruments should be treated as ordinary or capital, whether foreign holders of such instruments should be subject to withholding tax on any deemed income accruals, whether the tax treatment of such instruments should vary depending upon whether or not such instruments are traded on a securities exchange, whether such instruments should be treated as indebtedness, whether the tax treatment of such instruments should vary depending upon the nature of the underlying asset, and whether the special “constructive ownership rules” contained in Section 1260 of the Internal Revenue Code of 1986, as amended might be applied to such instruments. Holders are urged to consult their tax advisors concerning the significance, and the potential impact, if any, of the above considerations to their investment in the Notes. ML&Co. Inc. intends to continue to treat the Notes for U.S. federal income tax purposes in accordance with the treatment described herein unless and until such time as the Treasury Department and IRS determine that some other treatment is more appropriate.

Prospective purchasers of the Notes should consult their own tax advisors concerning the tax consequences, in light of their particular circumstances, under the laws of the United States and any other taxing jurisdiction, of the purchase, ownership and disposition of the Notes. See the discussion under the section entitled “United States Federal Income Taxation” in the accompanying product supplement ARN-4.

Experts

The consolidated financial statements incorporated by reference in this term sheet from Merrill Lynch & Co., Inc.’s and subsidiaries (“Merrill Lynch”) Annual Report on Form 10-K for the year ended December 28, 2007 and the effectiveness of Merrill Lynch’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, incorporated by reference in this term sheet (which reports (1) expressed an unqualified opinion on the consolidated financial statements and included an explanatory paragraph regarding the changes in accounting methods in 2007 relating to the adoption of Statement of Financial Accounting Standards No. 157, “Fair Value Measurement,” Statement of Financial Accounting Standards No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities—Including an amendment of FASB Statement No. 115,” and FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109,” and in 2006 for share-based payments to conform to Statement of Financial Accounting Standards No. 123 (revised 2004), “Share-Based Payment”, and included an explanatory paragraph relating to the restatement discussed in Note 20 to the consolidated financial statements) and (2) expressed an unqualified opinion on the effectiveness of internal control over financial reporting). Such consolidated financial statements have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

TS-9        

Additional Note Terms

You should read this term sheet, together with the documents listed below (collectively, the “Note Prospectus”), which together contain the terms of the Notes and supersede all prior or contemporaneous oral statements as well as any other written materials. You should carefully consider, among other things, the matters set forth under “Risk Factors” in the sections indicated on the cover of this term sheet. The Notes involve risks not associated with conventional debt securities. We urge you to consult your investment, legal, tax, accounting and other advisers before you invest in the Notes.

You may access the following documents on the SEC Website at www.sec.gov as follows (or if such address has changed, by reviewing our filings for the relevant date on the SEC Website):

     http://www.sec.gov/Archives/edgar/data/65100/000119312507253700/d424b2.htm

     http://www.sec.gov/Archives/edgar/data/65100/000119312507130785/d424b2.htm

     http://www.sec.gov/Archives/edgar/data/65100/000119312506070946/d424b5.htm

     http://www.sec.gov/Archives/edgar/data/65100/000119312506070973/d424b5.htm

     http://www.sec.gov/Archives/edgar/data/65100/000119312506070817/ds3asr.htm

Our Central Index Key, or CIK, on the SEC Website is 65100. References in this term sheet to “ML&Co.”, “we”, “us” and “our” are to Merrill Lynch & Co., Inc., and references to “MLPF&S” are to Merrill Lynch, Pierce, Fenner & Smith Incorporated.

ML&Co. has filed a registration statement (including a prospectus) with the Securities and Exchange Commission (the “SEC”) for the offering to which this term sheet relates. Before you invest, you should read the prospectus in that registration statement, and the other documents relating to this offering that ML&Co. has filed with the SEC for more complete information about ML&Co. and this offering. You may get these documents without cost by visiting EDGAR on the SEC Website at www.sec.gov. Alternatively, ML&Co., any agent or any dealer participating in this offering, will arrange to send you the Note Prospectus if you so request by calling toll-free 1-866-500-5408.

Structured Investments Classification

ML&Co. classifies certain of its structured investments (the “Structured Investments”), including the Notes, into four categories, each with different investment characteristics. The description below is intended to briefly describe the four categories of Structured Investments offered: Principal Protection, Enhanced Income, Market Participation, and Enhanced Participation. A Structured Investment may, however, combine characteristics that are relevant to one or more of the other categories. As such, a category should not be relied upon as a description of any particular Structured Investment.

Principal Protection: Principal Protected Structured Investments offer full or partial principal protection at maturity, while offering market exposure and the opportunity for a better return than may be available from comparable fixed income securities. Principal protection may not be achieved if the investment is sold prior to maturity.

Enhanced Income: Structured Investments offering enhanced income may offer an enhanced income stream through interim fixed or variable coupon payments. However, in exchange for receiving current income, investors may forfeit upside potential on the underlying asset. These investments generally do not include the principal protection feature.

Market Participation: Market Participation Structured Investments can offer investors exposure to specific market sectors, asset classes and/or strategies that may not be readily available through traditional investment alternatives. Returns obtained from these investments are tied to the performance of the underlying asset. As such, subject to certain fees, the returns will generally reflect any increases or decreases in the value of such assets. These investments are not structured to include the principal protection feature.

Enhanced Participation: Enhanced Participation Structured Investments may offer investors the potential to receive better than market returns on the performance of the underlying asset. Some structures may offer leverage in exchange for a capped or limited upside potential and also in exchange for downside risk. These investments are not structured to include the principal protection feature.

The classification of Structured Investments is meant solely for informational purposes and is not intended to fully describe any particular Structured Investment nor guarantee any particular performance.

TS-10