Navtech (NAVH) SC TO-T Third party tender offer statement

Exhibit (a)(6)

GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
NUMBER ON SUBSTITUTE FORM W-9

Guidelines for Determining the Proper Identification Number to give the Payer.    Social Security Numbers have nine digits separated by two hyphens: i.e., 000-00-0000. Employer Identification Numbers have nine digits separated by only one hyphen: i.e., 00-0000000. The table below will help determine the number to give the payer.

For this type of account:						Give the NAME and SOCIAL SECURITY number of—
1.			An individual’s account			The individual
2.			Two or more individuals (joint account)			The actual owner of the account or, if combined funds, any one of the individuals(1)
3.			Custodian account of a minor (Uniform Gift to Minors Act)			The minor(2)
4.			a. The usual revocable savings trust account (grantor is also trustee)			The grantor-trustee(1)
			b. So-called trust account that is not a legal or valid trust under State law			The actual owner(1)
5.			Sole proprietorship account or single-owner LLC			The owner(3)

For this type of account:						Give the NAME and EMPLOYER IDENTIFICATION number of—
6.			Sole proprietorship account or single-owner LLC			The owner(3)
7.			A valid trust, estate or pension trust			The legal entity (Do not furnish the identifying number of the personal representative or trustee unless the legal entity itself is not designated in the account title)(4)
8.			Corporate account or LLC electing corporate status on Form 8822			The corporation
9.			Association, club, religious, charitable, educational or other tax-exempt organization			The organization
10.			Partnership or multi-member LLC			The partnership
11.			A broker or registered nominee			The broker or nominee
12.			Account with the Department of Agriculture in the name of a public entity (such as a state or local government, school district, or prison) that receives agricultural program payments			The public entity

⁽¹⁾ List first and circle the name of the person whose number you furnish.

⁽²⁾ Circle the minor’s name and furnish the minor’s social security number.

⁽³⁾ You must show your individual name, but you may also enter your business or ‘‘doing business’’ name. You may use either your Social Security Number or Employer Identification Number.

⁽⁴⁾ List first and circle the name of the legal trust, estate, or pension trust.

Note:	If no name is circled when there is more than one name, the number will be considered to be that of the first name listed.

GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
NUMBER ON SUBSTITUTE FORM W-9

Obtaining a Number

If you do not have a taxpayer identification number or if you do not know your number, obtain Form SS-5, Application for Social Security Number Card, or Form SS-4, Application for Employer Identification Number, at the local office of the Social Security Administration or the Internal Revenue Service (the ‘‘IRS’’) and apply for a number.

Payees generally exempt from backup withholding on payments by brokers include the following:

•	A corporation.

•	A financial institution.

•	An organization exempt from a tax under Section 501(a) or an individual retirement plan or a custodial account under Section 403(b)(7) if the account satisfies the requirements of Section 401(F)(2).

•	The United States or any agency or instrumentality thereof.

•	A State, the District of Columbia, a possession of the United States or any subdivision or instrumentality thereof.

•	A foreign government, a political subdivision of a foreign government or any agency or instrumentality thereof.

•	An international organization or any agency or instrumentality thereof.

•	A registered dealer in securities or commodities registered in the U.S. or a possession of the U.S.

•	A real estate investment trust.

•	A common trust fund operated by a bank under Section 584(a).

•	An entity registered at all times during the tax year under the Investment Company Act of 1940.

•	A foreign central bank of issue.

•	A futures commission merchant registered with the Commodity Futures Trading Commission.

•	A person registered under the Investment Advisors Act of 1940 who regularly acts as a broker.

Payments of dividends and patronage dividends not generally subject to backup withholding include the following:

•	Payments to nonresident aliens subject to withholding under Section 1441.

•	Payments to partnerships not engaged in a trade or business in the U.S. and which have at least one nonresident partner.

•	Payments of patronage dividends where the amount received is not paid in money.

•	Payments made by certain foreign organizations.

Payments of interest not generally subject to backup withholding include the following:

•	Payments of interest on obligations issued by individuals. Note: You may be subject to backup withholding if this interest is $600 or more and is paid in the course of the payer’s trade or business and you have not provided your correct taxpayer identification number to the payer.

•	Payments of tax-exempt interest (including exempt-interest dividends under Section 852).

•	Payments described in Section 6049(b)(5) nonresident aliens.

•	Payments on tax-free covenant bonds under Section 1451.

•	Payments made by certain foreign corporations.

Exempt payees described above should provide an IRS Form W-9 or the Substitute Form W-9 to avoid possible erroneous backup withholding.     PROVIDE THIS FORM TO THE PAYER, FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER, CHECK THE ‘‘EXEMPT FROM BACKUP WITHHOLDING’’ BOX ON THE FORM, SIGN AND DATE THE FORM AND RETURN IT TO THE PAYER.

Payments that are not subject to information reporting are also not subject to backup withholding. For details, see Sections 6041, 6041A, 6042, 6044, 6045, 6049, 6050A, and 6050N, and their regulations.

Privacy Act Notice.   —   Section 6109 requires most recipients of dividend, interest or other payments to give taxpayer identification numbers to persons who must file information returns with the IRS. The IRS uses the numbers for identification purposes and to help verify the accuracy of tax returns. The IRS may also provide this information to the Department of Justice for civil and criminal litigation and to cities, states and the District of Columbia to carry out their tax laws. The IRS may also disclose this information to other countries under a tax treaty, or to Federal and state agencies to enforce Federal nontax criminal laws, or to Federal law enforcement and intelligence agencies to combat terrorism. Payers must be given the numbers whether or not recipients are required to file tax returns. Payers must generally withhold a po rtion of taxable interest, dividend and certain other payments to a payee who does not furnish a taxpayer identification number to a payer. Certain penalties may also apply.

Penalties

(1)Penalty for Failure to Furnish Taxpayer Identification Number. — If you fail to furnish your taxpayer identification number to a payer, you are subject to a penalty of $50 for each such failure unless your failure is due to reasonable cause and not to willful neglect.

(2)Civil Penalty for False Information with Respect to Withholding. — If you make a false statement with no reasonable basis which results in no imposition of backup withholding, you are subject to a penalty of $500.

(3)    Criminal Penalty for Falsifying Information.   — Willfully falsifying certifications or affirmations may subject you to criminal penalties including fines and/or imprisonment.

(4)    Misuse of Taxpayer Identification Numbers. — If the requester discloses or uses taxpayer identification numbers in violation of Federal law, the requester may be subject to civil and criminal penalties.

FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE INTERNAL REVENUE SERVICE.