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Exhibit 10.17    
    

 
 

Tetra Tech, Inc.    
    
    Deferred Compensation Plan    
    

  

Tetra Tech, Inc.

Deferred Compensation Plan 

 
 

TABLE OF CONTENTS    
    

	 
	 	 
	 	Page

	ARTICLE 1	 	Definitions	 	1
	
ARTICLE 2	
 	

Selection, Enrollment, Eligibility	
 	

7
	

2.1	
 	

Selection by Committee	
 	

7
	2.2	 	Enrollment and Eligibility Requirements; Commencement of Participation	 	7
	
ARTICLE 3	
 	

Deferral Commitments/Company Contribution Amounts/Company Restoration Matching Amounts/Vesting/Crediting/Taxes	
 	

7
	

3.1	
 	

Maximum Deferral	
 	

7
	3.2	 	Timing of Deferral Elections; Effect of Election Form	 	8
	3.3	 	Withholding and Crediting of Annual Deferral Amounts	 	9
	3.4	 	Company Contribution Amount	 	9
	3.5	 	Company Restoration Matching Amount	 	10
	3.6	 	Vesting	 	10
	3.7	 	Crediting/Debiting of Account Balances	 	11
	3.8	 	FICA and Other Taxes	 	12
	
ARTICLE 4	
 	

Scheduled Distributions; Unforeseeable Emergencies	
 	

12
	

4.1	
 	

Scheduled Distributions	
 	

12
	4.2	 	Postponing Scheduled Distributions	 	13
	4.3	 	Other Benefits Take Precedence Over Scheduled Distributions	 	13
	4.4	 	Unforeseeable Emergencies	 	13
	
ARTICLE 5	
 	

Change In Control Benefit	
 	

14
	

5.1	
 	

Change in Control Benefit	
 	

14
	5.2	 	Payment of Change in Control Benefit	 	14
	
ARTICLE 6	
 	

Retirement Benefit	
 	

14
	

6.1	
 	

Retirement Benefit	
 	

14
	6.2	 	Payment of Retirement Benefit	 	14
	
ARTICLE 7	
 	

Termination Benefit	
 	

15
	

7.1	
 	

Termination Benefit	
 	

15
	7.2	 	Payment of Termination Benefit	 	15
	
ARTICLE 8	
 	

Disability Benefit	
 	

16
	

8.1	
 	

Disability Benefit	
 	

16
	8.2	 	Payment of Disability Benefit	 	16
	
ARTICLE 9	
 	

Death Benefit	
 	

17
	

9.1	
 	

Death Benefit	
 	

17
	9.2	 	Payment of Death Benefit	 	17
	 	 	 	 	 

i

 

	
ARTICLE 10	
 	

Beneficiary Designation	
 	

17
	

10.1	
 	

Beneficiary	
 	

17
	10.2	 	Beneficiary Designation; Change; Spousal Consent	 	18
	10.3	 	Acknowledgement	 	18
	10.4	 	No Beneficiary Designation	 	18
	10.5	 	Doubt as to Beneficiary	 	18
	10.6	 	Discharge of Obligations	 	18
	
ARTICLE 11	
 	

Leave of Absence	
 	

18
	

11.1	
 	

Paid Leave of Absence	
 	

18
	11.2	 	Unpaid Leave of Absence	 	18
	
ARTICLE 12	
 	

Termination of Plan, Amendment or Modification	
 	

19
	

12.1	
 	

Termination of Plan	
 	

19
	12.2	 	Amendment	 	19
	12.3	 	Plan Agreement	 	19
	12.4	 	Effect of Payment	 	19
	
ARTICLE 13	
 	

Administration	
 	

19
	

13.1	
 	

Committee Duties	
 	

19
	13.2	 	Administration Upon Change In Control	 	20
	13.3	 	Agents	 	20
	13.4	 	Binding Effect of Decisions	 	20
	13.5	 	Indemnity of Committee	 	20
	13.6	 	Employer Information	 	20
	
ARTICLE 14	
 	

Other Benefits and Agreements	
 	

20
	

14.1	
 	

Coordination with Other Benefits	
 	

20
	
ARTICLE 15	
 	

Claims Procedures	
 	

21
	

15.1	
 	

Presentation of Claim	
 	

21
	15.2	 	Notification of Decision	 	21
	15.3	 	Review of a Denied Claim	 	21
	15.4	 	Decision on Review	 	21
	15.5	 	Legal Action	 	22
	
ARTICLE 16	
 	

Trust	
 	

22
	

16.1	
 	

Establishment of the Trust	
 	

22
	16.2	 	Interrelationship of the Plan and the Trust	 	22
	16.3	 	Distributions From the Trust	 	22
	
ARTICLE 17	
 	

Miscellaneous	
 	

22
	

17.1	
 	

Status of Plan	
 	

22
	17.2	 	Unsecured General Creditor	 	22
	17.3	 	Employer's Liability	 	23
	17.4	 	Nonassignability	 	23
	17.5	 	Not a Contract of Employment	 	23
	17.6	 	Furnishing Information	 	23
	17.7	 	Terms	 	23
	 	 	 	 	 

ii

 

	17.8	 	Captions	 	23
	17.9	 	Governing Law	 	23
	17.10	 	Notice	 	23
	17.11	 	Successors	 	24
	17.12	 	Spouse's Interest	 	24
	17.13	 	Validity	 	24
	17.14	 	Incompetent	 	24
	17.15	 	Domestic Relations Orders	 	24
	17.16	 	Distribution in the Event of Income Inclusion Under Code Section 409A	 	24
	17.17	 	Deduction Limitation on Benefit Payments	 	24

iii

  

 
 

Purpose    
    

        The purpose of this Plan is to provide specified benefits to Directors and a select group of management or highly compensated Employees who contribute materially
to the continued growth, development and future business success of Tetra Tech, Inc., a Delaware corporation, and its subsidiaries, if any, that sponsor this Plan. This Plan shall be unfunded
for tax purposes and for purposes of Title I of ERISA. 

        This
Plan is intended to comply with all applicable law, including Code Section 409A and related Treasury guidance and Regulations, and shall be operated and interpreted in
accordance with this intention. In order to transition to the requirements of Code Section 409A and related Treasury Regulations, the Committee may make available to Participants certain
transition relief provided under Notice 2006-79, as modified by Notice 2007-86, as described more fully in Appendix A of this Plan. 

 
 

ARTICLE 1
  Definitions    
    

        For the purposes of this Plan, unless otherwise clearly apparent from the context, the following phrases or terms shall have the following indicated meanings: 

	1.1
	"Account
Balance" shall mean, with respect to a Participant, an entry on the records of the Employer equal to the sum of the Participant's Annual Accounts. The Account Balance shall
be a bookkeeping entry only and shall be utilized solely as a device for the measurement and determination of the amounts to be paid to a Participant, or his or her designated Beneficiary, pursuant to
this Plan.

	

	If
a Participant is both an Employee and a Director and participates in the Plan in each capacity, then separate Account Balances (and separate Annual Accounts, if
applicable) shall be established for such Participant as a device for the measurement and determination of the (a) amounts deferred under the Plan that are attributable to the Participant's
status as an Employee, and (b) amounts deferred under the Plan that are attributable to the Participant's status as a Director.

	1.2
	"Annual
Account" shall mean, with respect to a Participant, an entry on the records of the Employer equal to (a) the sum of the Participant's Annual Deferral Amount, Company
Contribution Amount and Company Restoration Matching Amount for any one Plan Year, plus (b) amounts credited or debited to such amounts pursuant to this Plan, less (c) all distributions
made to the Participant or his or her Beneficiary pursuant to this Plan that relate to the Annual Account for such Plan Year. The Annual Account shall be a bookkeeping entry only and shall be utilized
solely as a device for the measurement and determination of the amounts to be paid to a Participant, or his or her designated Beneficiary, pursuant to this Plan.

	1.3
	"Annual
Deferral Amount" shall mean that portion of a Participant's Base Salary, Bonus and Director Fees that a Participant defers in accordance with Article 3 for any one Plan
Year, without regard to whether such amounts are withheld and credited during such Plan Year.

	1.4
	"Annual
Installment Method" shall mean the method used to determine the amount of each payment due to a Participant who has elected to receive a benefit over a period of years in
accordance with the applicable provisions of the Plan. The amount of each annual payment due to the Participant shall be calculated by multiplying the balance of the Participant's benefit by a
fraction, the numerator of which is one and the denominator of which is the remaining number of annual payments due to the Participant. The amount of the first annual payment shall be calculated as of
the close of business on or around the Participant's Benefit Distribution Date, and the amount of each subsequent annual payment shall be calculated on or around each anniversary of such Benefit
Distribution Date. 

1

 
	1.5
	"Base
Salary" shall mean the annual cash compensation relating to services performed during any calendar year, excluding distributions from nonqualified deferred compensation plans,
bonuses, commissions, overtime, fringe benefits, stock options, relocation expenses, incentive payments, non-monetary awards, director fees and other fees, and automobile and other
allowances paid to a Participant for employment services rendered (whether or not such allowances are included in the Employee's gross income). Base Salary shall be calculated before reduction for
compensation voluntarily deferred or contributed by the Participant pursuant to all qualified or nonqualified plans of any Employer and shall be calculated to include amounts not otherwise included in
the Participant's gross income under Code Sections 125, 402(e)(3), 402(h), or 403(b) pursuant to plans established by any Employer; provided, however, that all such amounts will be included in
compensation only to the extent that had there been no such plan, the amount would have been payable in cash to the Employee.

	1.6
	"Beneficiary"
shall mean one or more persons, trusts, estates or other entities, designated in accordance with Article 10, that are entitled to receive benefits under this Plan
upon the death of a Participant.

	1.7
	"Beneficiary
Designation Form" shall mean the form established from time to time by the Committee that a Participant completes, signs and returns to the Committee to designate one or
more Beneficiaries.

	1.8
	"Benefit
Distribution Date" shall mean the date upon which all or an objectively determinable portion of a Participant's vested benefits will become eligible for distribution. Except
as otherwise provided in the Plan, a Participant's Benefit Distribution Date shall be determined based on the earliest to occur of an event or scheduled date set forth in Articles 4 through 9, as
applicable.

	1.9
	"Board"
shall mean the board of directors of the Company.

	1.10
	"Bonus"
shall mean any compensation, in addition to Base Salary earned by a Participant under any Employer's annual bonus and cash incentive plans.

	1.11
	"Change
in Control" shall mean the occurrence of a "change in the ownership," a "change in the effective control" or a "change in the ownership of a substantial portion of the
assets" of a corporation, as determined in accordance with this Section.

	

	In
order for an event described below to constitute a Change in Control with respect to a Participant, except as otherwise provided in part (b)(ii) of this
Section, the applicable event must relate to the corporation for which the Participant is providing services, the corporation that is liable for payment of the Participant's Account Balance (or all
corporations liable for payment if more than one), as identified by the Committee in accordance with Treas. Reg. §1.409A-3(i)(5)(ii)(A)(2), or such other corporation identified
by the Committee in accordance with Treas. Reg. §1.409A-3(i)(5)(ii)(A)(3).

	

	In
determining whether an event shall be considered a "change in the ownership," a "change in the effective control" or a "change in the ownership of a substantial portion
of the assets" of a corporation, the following provisions shall apply:

	(a)
	A
"change in the ownership" of the applicable corporation shall occur on the date on which any one person, or more than one person acting as a group, acquires ownership of stock of
such corporation that, together with stock held by such person or group, constitutes more than 50% of the total fair market value or total voting power of the stock of such corporation, as determined
in accordance with Treas. Reg. §1.409A-3(i)(5)(v). If a person or group is considered either to own more than 50% of the total fair market value or total voting power of the
stock of such corporation, or to have effective control of such corporation within the meaning of part (b) of this Section, and such person or group 

2

 

acquires
additional stock of such corporation, the acquisition of additional stock by such person or group shall not be considered to cause a "change in the ownership" of such corporation. 

	(b)
	A
"change in the effective control" of the applicable corporation shall occur on either of the following dates:

	(i)
	The
date on which any one person, or more than one person acting as a group, acquires (or has acquired during the 12-month period ending on the date of the
most recent acquisition by such person or persons) ownership of stock of such corporation possessing 30% or more of the total voting power of the stock of such corporation, as determined in accordance
with Treas. Reg. §1.409A-3(i)(5)(vi). If a person or group is considered to possess 30% or more of the total voting power of the stock of a corporation, and such person or
group acquires additional stock of such corporation, the acquisition of additional stock by such person or group shall not be considered to cause a "change in the effective control" of such
corporation; or

	(ii)
	The
date on which a majority of the members of the applicable corporation's board of directors is replaced during any 12-month period by directors whose
appointment or election is not endorsed by a majority of the members of such corporation's board of directors before the date of the appointment or election, as determined in accordance with Treas.
Reg. §1.409A-3(i)(5)(vi). In determining whether the event described in the preceding sentence has occurred, the applicable corporation to which the event must relate shall
only include a corporation identified in accordance with Treas. Reg. §1.409A-3(i)(5)(ii) for which no other corporation is a majority shareholder.

	(c)
	A
"change in the ownership of a substantial portion of the assets" of the applicable corporation shall occur on the date on which any one person, or more than one person acting as a
group, acquires (or has acquired during the 12-month period ending on the date of the most recent acquisition by such person or persons) assets from the corporation that have a total gross
fair market value equal to or more than 40% of the total gross fair market value of all of the assets of the corporation immediately before such acquisition or acquisitions, as determined in
accordance with Treas. Reg. §1.409A-3(i)(5)(vii). A transfer of assets shall not be treated as a "change in the ownership of a substantial portion of the assets" when such
transfer is made to an entity that is controlled by the shareholders of the transferor corporation, as determined in accordance with Treas. Reg. §1.409A-3(i)(5)(vii)(B).

	1.12
	"Code"
shall mean the Internal Revenue Code of 1986, as it may be amended from time to time.

	1.13
	"Committee"
shall mean the committee described in Article 13.

	1.14
	"Company"
shall mean Tetra Tech, Inc., a Delaware corporation, and any successor to all or substantially all of the Company's assets or business.

	1.15
	"Company
Contribution Amount" shall mean, for any one Plan Year, the amount determined in accordance with Section 3.4.

	1.16
	"Company
Restoration Matching Amount" shall mean, for any one Plan Year, the amount determined in accordance with Section 3.5.

	1.17
	"Director"
shall mean any member of the board of directors of any Employer.

	1.18
	"Director
Fees" shall mean the annual fees earned by a Director from any Employer, including retainer fees and meetings fees, as compensation for serving on the board of directors.

	1.19
	"Disability"
or "Disabled" shall mean that a Participant is determined to be totally disabled by the Social Security Administration. 

3

 
	1.20
	"Election
Form" shall mean the form, which may be in electronic format, established from time to time by the Committee that a Participant completes, signs and returns to the
Committee to make an election under the Plan.

	1.21
	"Employee"
shall mean a person who is an employee of an Employer.

	1.22
	"Employer(s)"
shall be defined as follows:

	(a)
	Except
as otherwise provided in part (b) of this Section, the term "Employer" shall mean the Company and/or any of its subsidiaries (now in existence or hereafter formed or
acquired) that have been selected by the Board to participate in the Plan and have adopted the Plan as a sponsor.

	(b)
	For
the purpose of determining whether a Participant has experienced a Separation from Service, the term "Employer" shall mean:

	(i)
	The
entity for which the Participant performs services and with respect to which the legally binding right to compensation deferred or contributed under this Plan
arises; and

	(ii)
	All
other entities with which the entity described above would be aggregated and treated as a single employer under Code Section 414(b) (controlled group of
corporations) and Code Section 414(c) (a group of trades or businesses, whether or not incorporated, under common control), as applicable. In order to identify the group of entities described
in the preceding sentence, the Committee shall use an ownership threshold of at least 50% as a substitute for the 80% minimum ownership threshold that appears in, and otherwise must be used when
applying, the applicable provisions of (A) Code Section 1563 for determining a controlled group of corporations under Code Section 414(b), and (B) Treas. Reg.
§1.414(c)-2 for determining the trades or businesses that are under common control under Code Section 414(c).

	1.23
	"ERISA"
shall mean the Employee Retirement Income Security Act of 1974, as it may be amended from time to time.

	1.24
	"401(k)
Plan" shall mean, with respect to an Employer, a plan qualified under Code Section 401(a) that contains a cash or deferral arrangement described in Code
Section 401(k), adopted by the Employer, as it may be amended from time to time, or any successor thereto.

	1.25
	"Participant"
shall mean any Employee or Director (a) who is selected to participate in the Plan, (b) whose executed Plan Agreement, Election Form and Beneficiary
Designation Form are accepted by the Committee, and (c) whose Plan Agreement has not terminated.

	1.26
	"Performance-Based
Compensation" shall mean compensation the entitlement to or amount of which is contingent on the satisfaction of pre-established organizational or
individual performance criteria relating to a performance period of at least 12 consecutive months, as determined by the Committee in accordance with Treas. Reg. §1.409A-1(e).

	1.27
	"Plan"
shall mean the Tetra Tech, Inc. Deferred Compensation Plan, which shall be evidenced by this instrument, as it may be amended from time to time, and by any other
documents that together with this instrument define a Participant's rights to amounts credited to his or her Account Balance.

	1.28
	"Plan
Agreement" shall mean a written agreement in the form prescribed by or acceptable to the Committee that evidences a Participant's agreement to the terms of the Plan and which
may establish additional terms or conditions of Plan participation for a Participant. Unless otherwise determined by the Committee, the most recent Plan Agreement accepted with respect to a
Participant shall supersede any prior Plan Agreements for such Participant. Plan Agreements may 

4

 

vary
among Participants and may provide additional benefits not set forth in the Plan or limit the benefits otherwise provided under the Plan. 

	1.29
	"Plan
Year" shall mean a period beginning on January 1 of each calendar year and continuing through December 31 of such calendar year.

	1.30
	"Retirement,"
"Retire(s)" or "Retired" shall mean with respect to a Participant who is an Employee, a Separation from Service on or after the attainment of age 65 or, if earlier, age
55 with not less than ten Years of Service, and shall mean with respect to a Participant who is a Director, a Separation from Service. If a Participant is both an Employee and a Director and
participates in the Plan in each capacity, (a) the determination of whether the Participant qualifies for Retirement as an Employee shall be made when the Participant experiences a Separation
from Service as an Employee and such determination shall only apply to the applicable Account Balance established in accordance with Section 1.1 for amounts deferred under the Plan as an
Employee, and (b) the determination of whether the Participant qualifies for Retirement as a Director shall be made at the time the Participant experiences a Separation from Service as a
Director and such determination shall only apply to the applicable Account Balance established in accordance with Section 1.1 for amounts deferred under the Plan as a Director.

	1.31
	"Separation
from Service" shall mean a termination of services provided by a Participant to his or her Employer, whether voluntarily or involuntarily, other than by reason of death
or Disability, as determined by the Committee in accordance with Treas. Reg. §1.409A-1(h). In determining whether a Participant has experienced a Separation from Service, the
following provisions shall apply:

	(a)
	For
a Participant who provides services to an Employer as an Employee, except as otherwise provided in part (c) of this Section, a Separation from Service shall occur when such
Participant has experienced a termination of employment with such Employer. A Participant shall be considered to have experienced a termination of employment when the facts and circumstances indicate
that the Participant and his or her Employer reasonably anticipate that either (i) no further services will be performed for the Employer after a certain date, or (ii) that the level of
bona fide services the Participant will perform for the Employer after such date (whether as an Employee or as an independent contractor) will permanently decrease to no more than 20% of the average
level of bona fide services performed by such Participant (whether as an Employee or an independent contractor) over the immediately preceding 36-month period (or the full period of
services to the Employer if the Participant has been providing services to the Employer less than 36 months).

	

	If
a Participant is on military leave, sick leave, or other bona fide leave of absence, the employment relationship between the Participant and the Employer shall be
treated as continuing intact, provided that the period of such leave does not exceed 6 months, or if longer, so long as the Participant retains a right to reemployment with the Employer under
an applicable statute or by contract. If the period of a military leave, sick leave, or other bona fide leave of absence exceeds 6 months and the Participant does not retain a right to
reemployment under an applicable statute or by contract, the employment relationship shall be considered to be terminated for purposes of this Plan as of the first day immediately following the end of
such 6-month period. In applying the provisions of this paragraph, a leave of absence shall be considered a bona fide leave of absence only if there is a reasonable expectation that the
Participant will return to perform services for the Employer.

	(b)
	For
a Participant who provides services to an Employer as an independent contractor, except as otherwise provided in part (c) of this Section, a Separation from Service shall
occur upon the expiration of the contract (or in the case of more than one contract, all contracts) under 

5

 

which
services are performed for such Employer, provided that the expiration of such contract(s) is determined by the Committee to constitute a good-faith and complete termination of the
contractual relationship between the Participant and such Employer. 

	(c)
	For
a Participant who provides services to an Employer as both an Employee and an independent contractor,a Separation from Service
generally shall not occur until the Participant has ceased providing services for such Employer as both as an Employee and as an independent contractor, as determined in accordance with the provisions
set forth in parts (a) and (b) of this Section, respectively. Similarly, if a Participant either (i) ceases providing services for an Employer as an independent contractor and
begins providing services for such Employer as an Employee, or (ii) ceases providing services for an Employer as an Employee and begins providing services for such Employer as an independent
contractor, the Participant will not be considered to have experienced a Separation from Service until the Participant has ceased providing services for such Employer in both capacities, as determined
in accordance with the applicable provisions set forth in parts (a) and (b) of this Section.

	

	Notwithstanding
the foregoing provisions in this part (c), if a Participant provides services for an Employer as both an Employee and as a Director, to the extent
permitted by Treas. Reg. §1.409A-1(h)(5) the services provided by such Participant as a Director shall not be taken into account in determining whether the Participant has
experienced a Separation from Service as an Employee, and the services provided by such Participant as an Employee shall not be taken into account in determining whether the Participant has
experienced a Separation from Service as a Director.

	1.32
	"Specified
Employee" shall mean any Participant who is determined to be a "key employee" (as defined under Code Section 416(i) without regard to paragraph (5)
thereof) for the applicable period, as determined annually by the Committee in accordance with Treas. Reg. §1.409A-1(i). In determining whether a Participant is a Specified
Employee, the following provisions shall apply:

	(a)
	The
Committee's identification of the individuals who fall within the definition of "key employee" under Code Section 416(i) (without regard to paragraph (5)
thereof) shall be based upon the 12-month period ending on each December 31st (referred to below as the "identification date"). In applying the applicable provisions
of Code Section 416(i) to identify such individuals, "compensation" shall be determined in accordance with Treas. Reg. §1.415(c)-2(a) without regard to
(i) any safe harbor provided in Treas. Reg. §1.415(c)-2(d), (ii) any of the special timing rules provided in Treas. Reg. §1.415(c)-2(e),
and (iii) any of the special rules provided in Treas. Reg. §1.415(c)-2(g); and

	(b)
	Each
Participant who is among the individuals identified as a "key employee" in accordance with part (a) of this Section shall be treated as a Specified Employee for purposes
of this Plan if such Participant experiences a Separation from Service during the 12-month period that begins on the April 1st following the applicable identification
date.

	1.33
	"Trust"
shall mean one or more trusts established by the Company in accordance with Article 16.

	1.34
	"Unforeseeable
Emergency" shall mean a severe financial hardship of the Participant resulting from (a) an illness or accident of the Participant, the Participant's spouse, the
Participant's Beneficiary or the Participant's dependent (as defined in Code Section 152 without regard to paragraphs (b)(1), (b)(2) and (d)(1)(b) thereof), (b) a loss of the
Participant's property due to casualty, or (c) such other similar extraordinary and unforeseeable circumstances arising as a result of events beyond the control of the Participant, all as
determined by the Committee based on the relevant facts and circumstances. 

6

 
	1.35
	"Years
of Plan Participation" shall mean the total number of full Plan Years a Participant has been a Participant in the Plan prior to his or her Separation from Service (determined
without regard to whether deferral elections have been made by the Participant for any Plan Year). A partial year shall not be treated as a full Plan Year for purposes of this definition.

	1.36
	"Years
of Service" shall mean the total number of full years in which a Participant has been employed by one or more Employers. For purposes of this definition, a year of employment
shall be a 365 day period (or 366 day period in the case of a leap year) that, for the first year of employment, commences on the Employee's date of hiring and that, for any subsequent
year, commences on an anniversary of that hiring date. A partial year of employment shall not be treated as a Year of Service. 

 
 

ARTICLE 2
  Selection, Enrollment, Eligibility    
    

	2.1
	Selection by Committee.    Participation in the Plan shall be limited to Directors and, as determined by the Committee in its
sole discretion, a select group of management or highly compensated Employees. From that group, the Committee shall select, in its sole discretion, those individuals who may actually participate in
this Plan.

	2.2
	Enrollment and Eligibility Requirements; Commencement of Participation.

	(a)
	As
a condition to participation, each Director or selected Employee shall complete, execute and return to the Committee a Plan Agreement, an Election Form and a Beneficiary
Designation Form by the deadline(s) established by the Committee in accordance with the applicable provisions of this Plan. In addition, the Committee shall establish from time to time such other
enrollment requirements as it determines, in its sole discretion, are necessary.

	(b)
	Each
Director or selected Employee who is eligible to participate in the Plan shall commence participation in the Plan on the date that the Committee determines that the Director or
Employee has met all enrollment requirements set forth in this Plan and required by the Committee, including returning all required documents to the Committee within the specified time period.

	(c)
	If
a Director or an Employee fails to meet all requirements established by the Committee within the period required, that Director or Employee shall not be eligible to participate in
the Plan during such Plan Year. 

 
 

ARTICLE 3
  Deferral Commitments/Company Contribution Amounts/
  Company Restoration Matching Amounts/ Vesting/Crediting/Taxes    
    

	3.1
	Maximum Deferral.

	(a)
	Annual Deferral Amount.    For each Plan Year, a Participant may elect to defer, as his or her Annual Deferral Amount, Base
Salary, Bonus and/or Director Fees up to the following maximum percentages for each deferral elected: 

	Deferral
 
	 	Maximum Percentage

	Base Salary	 	100%
	Bonus	 	100%
	Director Fees	 	100%

7

 

	(b)
	Short Plan Year.    Notwithstanding the foregoing, if a Participant first becomes a Participant after the first day of a Plan
Year, then to the extent required by Section 3.2 and Code Section 409A and related Treasury Regulations, the maximum amount of the Participant's Base Salary, Bonus or Director Fees that
may be deferred by the Participant for the Plan Year shall be determined by applying the percentages set forth in Section 3.1(a) to the portion of such compensation attributable to services
performed after the date that the Participant's deferral election is made. 

	3.2
	Timing of Deferral Elections; Effect of Election Form.

	(a)
	General Timing Rule for Deferral Elections.    Except as otherwise provided in this Section 3.2, in order for a
Participant to make a valid election to defer Base Salary, Bonus and/or Director Fees, the Participant must submit an Election Form on or before the deadline established by the Committee, which in no
event shall be later than the December 31st preceding the Plan Year in which such compensation will be earned.

	

	Any
deferral election made in accordance with this Section 3.2(a) shall be irrevocable; provided, however, that if the Committee permits or requires Participants to
make a deferral election by the deadline described above for an amount that qualifies as Performance-Based Compensation, the Committee may permit a Participant to subsequently change his or her
deferral election for such compensation by submitting a new Election Form in accordance with Section 3.2(d) below.

	(b)
	Timing of Deferral Elections for Newly Eligible Plan Participants.    A Director or selected Employee who first becomes
eligible to participate in the Plan on or after the beginning of a Plan Year, as determined in accordance with Treas. Reg. §1.409A-2(a)(7)(ii) and the "plan aggregation"
rules provided in Treas. Reg. §1.409A-1(c)(2), may be permitted to make an election to defer the portion of Base Salary, Bonus and/or Director Fees attributable to services to
be performed after such election, provided that the Participant submits an Election Form on or before the deadline established by the Committee, which in no event shall be later than 30 days
after the Participant first becomes eligible to participate in the Plan.

	

	If
a deferral election made in accordance with this Section 3.2(b) relates to compensation earned based upon a specified performance period, the amount eligible for
deferral shall be equal to (i) the total amount of compensation for the performance period, multiplied by (ii) a fraction, the numerator of which is the number of days remaining in the
service period after the Participant's deferral election is made, and the denominator of which is the total number of days in the performance period.

	

	Any
deferral election made in accordance with this Section 3.2(b) shall become irrevocable no later than the 30th day after the date the Director or
selected Employee becomes eligible to participate in the Plan.

	(c)
	Timing of Deferral Elections for Fiscal Year Compensation.    In the event that the fiscal year of an Employer is different
than the taxable year of a Participant, the Committee may determine that a deferral election may be made for "fiscal year compensation" (as defined below), by submitting an Election Form on or before
the deadline established by the Committee, which in no event shall be later than the last day of the Employer's fiscal year immediately preceding the fiscal year in which the services related to such
compensation will begin to be performed. For purposes of this Section, the term "fiscal year compensation" shall only include Bonus amounts relating to a service period coextensive with one or more
consecutive fiscal years of the Employer, of which no amount is paid or payable during the Employer's fiscal year(s) that constitute the service period. 

8

 

	

	A
deferral election made in accordance with this Section 3.2(c) shall be irrevocable; provided, however, that if the Committee permits or requires Participants to
make a deferral election by the deadline described in this Section 3.2(c) for an amount that qualifies as Performance-Based Compensation, the Committee may permit a Participant to subsequently
change his or her deferral election for such compensation by submitting a new Election Form in accordance with 3.2(d) below.

	(d)
	Timing of Deferral Elections for Performance-Based Compensation.    Subject to the limitations described below, the Committee
may determine that an irrevocable deferral election for an amount that qualifies as Performance-Based Compensation may be made by submitting an Election Form on or before the deadline established by
the Committee, which in no event shall be later than 6 months before the end of the performance period.

	

	In
order for a Participant to be eligible to make a deferral election for Performance-Based Compensation in accordance with the deadline established pursuant to this
Section 3.2(d), the Participant must have performed services continuously from the later of (i) the beginning of the performance period for such compensation, or (ii) the date
upon which the performance criteria for such compensation are established, through the date upon which the Participant makes the deferral election for such compensation. In no event shall a deferral
election submitted under this Section 3.2(d) be permitted to apply to any amount of Performance-Based Compensation that has become readily ascertainable.

	(e)
	Timing Rule for Deferral of Compensation Subject to Risk of Forfeiture.    With respect to compensation (i) to which a
Participant has a legally binding right to payment in a subsequent year, and (ii) that is subject to a forfeiture condition requiring the Participant's continued services for a period of at
least 12 months from the date the Participant obtains the legally binding right, the Committee may determine that an irrevocable deferral election for such compensation may be made by timely
delivering an Election Form to the Committee in accordance with its rules and procedures, no later than the 30th day after the Participant obtains the legally binding right to the
compensation, provided that the election is made at least 12 months in advance of the earliest date at which the forfeiture condition could lapse, as determined in accordance with Treas. Reg.
§1.409A-2(a)(5).

	

	Any
deferral election(s) made in accordance with this Section 3.2(e) shall become irrevocable no later than the 30th day after the Participant obtains
the legally binding right to the compensation subject to such deferral election(s). 

	3.3
	Withholding and Crediting of Annual Deferral Amounts.    For each Plan Year, the Base Salary portion of the Annual Deferral
Amount shall be withheld from each regularly scheduled Base Salary payroll in equal amounts, as adjusted from time to time for increases and decreases in Base Salary. The Bonus and/or Director Fees
portion of the Annual Deferral Amount shall be withheld at the time the Bonus or Director Fees are or otherwise would be paid to the Participant, whether or not this occurs during the Plan Year
itself. Annual Deferral Amounts shall be credited to the Participant's Annual Account for such Plan Year at the time such amounts would otherwise have been paid to the Participant.

	3.4
	Company Contribution Amount.

	(a)
	For
each Plan Year, an Employer may be required to credit amounts to a Participant's Annual Account in accordance with employment or other agreements entered into between the
Participant and the Employer, which amounts shall be part of the Participant's Company Contribution Amount for that Plan Year. Such amounts shall be credited to the Participant's Annual Account for
the applicable Plan Year on the date or dates prescribed by such agreements. 

9

  

	(b)
	For
each Plan Year, an Employer, in its sole discretion, may, but is not required to, credit any amount it desires to any Participant's Annual Account under this Plan, which amount
shall be part of the Participant's Company Contribution Amount for that Plan Year. The amount so credited to a Participant may be smaller or larger than the amount credited to any other Participant,
and the amount credited to any Participant for a Plan Year may be zero, even though one or more other Participants receive a Company Contribution Amount for that Plan Year. The Company Contribution
Amount described in this Section 3.4(b), if any, shall be credited to the Participant's Annual Account for the applicable Plan Year on a date or dates to be determined by the Committee.

	(c)
	If
not otherwise specified in the Participant's employment or other agreement entered into between the Participant and the Employer, the amount (or the method or formula for
determining the amount) of a Participant's Company Contribution Amount shall be set forth in writing in one or more documents, which shall be deemed to be incorporated into this Plan in accordance
with Section 1.27, no later than the date on which such Company Contribution Amount is credited to the applicable Annual Account of the Participant. 

	3.5
	Company Restoration Matching Amount.    A Participant's Company Restoration Matching Amount for any Plan Year shall be an
amount determined by the Committee to make up for certain limits applicable to the 401(k) Plan or other qualified plan for such Plan Year, as identified by the Committee, or for such other purposes as
determined by the Committee in its sole discretion. The amount so credited to a Participant under this Plan for any Plan Year (a) may be smaller or larger than the amount credited to any other
Participant, and (b) may differ from the amount credited to such Participant in the preceding Plan Year. The Participant's Company Restoration Matching Amount, if any, shall be credited to the
Participant's Annual Account for the applicable Plan Year on a date or dates to be determined by the Committee. The amount (or the method or formula for determining the amount) of a Participant's
Company Restoration Matching Amount shall be set forth in writing in one or more documents, which shall be deemed to be incorporated into this Plan in accordance with Section 1.27, no later
than the date on which such Company Restoration Matching Amount is credited to the applicable Annual Account of the Participant.

	3.6
	Vesting.

	(a)
	A
Participant shall at all times be 100% vested in the portion of his or her Account Balance attributable to Annual Deferral Amounts, plus amounts credited or debited on such amounts
pursuant to Section 3.7.

	(b)
	A
Participant shall be vested in the portion of his or her Account Balance attributable to any Company Contribution Amounts, plus amounts credited or debited on such amounts pursuant
to Section 3.7, in accordance with the vesting schedule(s) set forth in his or her Plan Agreement, employment agreement or any other agreement entered into between the Participant and his or
her Employer.

	(c)
	A
Participant shall be vested in the portion of his or her Account Balance attributable to any Company Restoration Matching Amounts, plus amounts credited or debited on such amounts
pursuant to Section 3.7, only to the extent that the Participant would be vested in such amounts under the provisions of the 401(k) Plan, as determined by the Committee in its sole discretion.

	(d)
	Notwithstanding
anything to the contrary contained in this Section 3.6, in the event of a Change in Control, or upon a Participant's Disability, Separation from Service on or
after qualifying for Retirement, or death prior to Separation from Service, any amounts that are not vested in accordance with Sections 3.6(b) or 3.6(c) above, shall immediately become 100% vested. 

10

 

	(e)
	Notwithstanding
subsection 3.6(d) above, the vesting schedules described in Sections 3.6(b) or 3.6(c) above shall not be accelerated upon a Change in Control to the extent that the
Committee determines that such acceleration would cause the deduction limitations of Section 280G of the Code to become effective. In the event of such a determination, the Participant may
request independent verification of the Committee's calculations with respect to the application of Section 280G. In such case, the Committee must provide to the Participant within
90 days of such a request an opinion from a nationally recognized accounting firm selected by the Participant (the "Accounting Firm"). The opinion shall state the Accounting Firm's opinion that
any limitation in the vested percentage hereunder is necessary to avoid the limits of Section 280G and contain supporting calculations. The cost of such opinion shall be paid for by the
Company.

	(f)
	Section 3.6(e)
shall not prevent the acceleration of the vesting schedules described in Sections 3.6(b) and 3.6(c) if such Participant is entitled to a "gross-up"
payment, to eliminate the effect of the Code section 4999 excise tax, pursuant to his or her employment agreement or other agreement entered into between such Participant and the Employer. 

	3.7
	Crediting/Debiting of Account Balances.    In accordance with, and subject to, the rules and procedures that are established
from time to time by the Committee, in its sole discretion, amounts shall be credited or debited to a Participant's Account Balance in accordance with the following rules:

	(a)
	Measurement Funds.    The Participant may elect one or more of the measurement funds selected by the Committee, in its sole
discretion, which are based on certain mutual funds (the "Measurement Funds"), for the purpose of crediting or debiting additional amounts to his or her Account Balance. As necessary, the Committee
may, in its sole discretion, discontinue, substitute or add a Measurement Fund. Each such action will take effect as of the first day of the first calendar quarter that begins at least 30 days
after the day on which the Committee gives Participants advance written notice of such change.

	(b)
	Election of Measurement Funds.    A Participant, in connection with his or her initial deferral election in accordance with
Section 3.2 above, shall elect, on the Election Form, one or more Measurement Fund(s) (as described in Section 3.7(a) above) to be used to determine the amounts to be credited or debited
to his or her Account Balance. If a Participant does not elect any of the Measurement Funds as described in the previous sentence, the Participant's Account Balance shall automatically be allocated
into the lowest-risk Measurement Fund, as determined by the Committee, in its sole discretion. The Participant may (but is not required to) elect, by submitting an Election Form to the
Committee that is accepted by the Committee, to add or delete one or more Measurement Fund(s) to be used to determine the amounts to be credited or debited to his or her Account Balance, or to change
the portion of his or her Account Balance allocated to each previously or newly elected Measurement Fund. If an election is made in accordance with the previous sentence, it shall apply as of the
first business day deemed reasonably practicable by the Committee, in its sole discretion, and shall continue thereafter for each subsequent day in which the Participant participates in the Plan,
unless changed in accordance with the previous sentence. Notwithstanding the foregoing, the Committee, in its sole discretion, may impose limitations on the frequency with which one or more of the
Measurement Funds elected in accordance with this Section 3.7(b) may be added or deleted by such Participant; furthermore, the Committee, in its sole discretion, may impose limitations on the
frequency with which the Participant may change the portion of his or her Account Balance allocated to each previously or newly elected Measurement Fund.

	(c)
	Proportionate Allocation.    In making any election described in Section 3.7(b) above, the Participant shall specify
on the Election Form, in increments of one percent (1%), the 

11

 

percentage
of his or her Account Balance or Measurement Fund, as applicable, to be allocated/reallocated. 

	(d)
	Crediting or Debiting Method.    The performance of each Measurement Fund (either positive or negative) will be determined on
a daily basis based on the manner in which such Participant's Account Balance has been hypothetically allocated among the Measurement Funds by the Participant.

	(e)
	No Actual Investment.    Notwithstanding any other provision of this Plan that may be interpreted to the contrary, the
Measurement Funds are to be used for measurement purposes only, and a Participant's election of any such Measurement Fund, the allocation of his or her Account Balance thereto, the calculation of
additional amounts and the crediting or debiting of such amounts to a Participant's Account Balance shall not be considered or construed in any manner as an actual investment of his or her Account
Balance in any such Measurement Fund. In the event that the Company or the Trustee (as that term is defined in the Trust), in its own discretion, decides to invest funds in any or all of the
investments on which the Measurement Funds are based, no Participant shall have any rights in or to such investments themselves. Without limiting the foregoing, a Participant's Account Balance shall
at all times be a bookkeeping entry only and shall not represent any investment made on his or her behalf by the Company or the Trust; the Participant shall at all times remain an unsecured creditor
of the Company. 

	3.8
	FICA and Other Taxes.

	(a)
	Annual Deferral Amounts.    For each Plan Year in which an Annual Deferral Amount is being withheld from a Participant, the
Participant's Employer(s) shall withhold from that portion of the Participant's Base Salary and/or Bonus that is not being deferred, in a manner determined by the Employer(s), the Participant's share
of FICA and other employment taxes on such Annual Deferral Amount. If necessary, the Committee may reduce the Annual Deferral Amount in order to comply with this Section 3.8.

	(b)
	Company Restoration Matching Amounts and Company Contribution Amounts.    When a Participant becomes vested in a portion of
his or her Account Balance attributable to any Company Restoration Matching Amounts and/or Company Contribution Amounts, the Participant's Employer(s) shall withhold from that portion of the
Participant's Base Salary and/or Bonus that is not deferred, in a manner determined by the Employer(s), the Participant's share of FICA and other employment taxes on such amounts. If necessary, the
Committee may reduce the vested portion of the Participant's Company Restoration Matching Amount or Company Contribution Amount, as applicable, in order to comply with this Section 3.8.

	(c)
	Distributions.    The Participant's Employer(s), or the trustee of the Trust, shall withhold from any payments made to a
Participant under this Plan all federal, state and local income, employment and other taxes required to be withheld by the Employer(s), or the trustee of the Trust, in connection with such payments,
in amounts and in a manner to be determined in the sole discretion of the Employer(s) and the trustee of the Trust. 

 
 

ARTICLE 4
  Scheduled Distribution; Unforeseeable Emergencies    
    

	4.1
	Scheduled Distributions.    In connection with each election to defer an Annual Deferral Amount, a Participant may elect to
receive all or a portion of such Annual Deferral Amount, plus amounts credited or debited on that amount pursuant to Section 3.7, in the form of a lump sum payment, calculated as of the close
of business on or around the Benefit Distribution Date designated by the Participant in accordance with this Section (a "Scheduled Distribution").

12

 

The
Benefit Distribution Date for the amount subject to a Scheduled Distribution election shall be the first day of any Plan Year designated by the Participant, which may be no sooner than 3 Plan
Years after the end of the Plan Year to which the Participant's deferral election relates, unless otherwise provided on an Election Form approved by the Committee. 

	

	Subject
to the other terms and conditions of this Plan, each Scheduled Distribution elected shall be paid out during a 60 day period commencing immediately after
the Benefit Distribution Date. By way of example, if a Scheduled Distribution is elected for Annual Deferral Amounts that are earned in the Plan Year commencing January 1, 2008, the earliest
Benefit Distribution Date that may be designated by a Participant would be January 1, 2012, and the Scheduled Distribution would be paid out during the 60 day period commencing
immediately after such Benefit Distribution Date.

	4.2
	Postponing Scheduled Distributions.    A Participant may elect to postpone a Scheduled Distribution described in
Section 4.1 above, and have such amount paid out during a 60 day period commencing immediately after an allowable alternative Benefit Distribution Date designated in accordance with this
Section 4.2. In order to make such an election, the Participant must submit an Election Form to the Committee in accordance with the following criteria:

	(a)
	The
election of the new Benefit Distribution Date shall have no effect until at least 12 months after the date on which the election is made;

	(b)
	The
new Benefit Distribution Date selected by the Participant for such Scheduled Distribution must be the first day of a Plan Year that is no sooner than 5 years after the
previously designated Benefit Distribution Date; and

	(c)
	The
election must be made at least 12 months prior to the Participant's previously designated Benefit Distribution Date for such Scheduled Distribution.

	

	For
purposes of applying the provisions of this Section 4.2, a Participant's election to postpone a Scheduled Distribution shall not be considered to be made until
the date on which the election becomes irrevocable. Such an election shall become irrevocable no later than the date that is 12 months prior to the Participant's previously designated Benefit
Distribution Date for such Scheduled Distribution.

	4.3
	Other Benefits Take Precedence Over Scheduled Distributions.    Should an event occur prior to any Benefit Distribution Date
designated for a Scheduled Distribution that would trigger a benefit under Articles 5 through 9, as applicable, all amounts subject to a Scheduled Distribution election shall be paid in accordance
with the other applicable provisions of the Plan and not in accordance with this Article 4.

	4.4
	Unforeseeable Emergencies.

	(a)
	If
a Participant experiences an Unforeseeable Emergency prior to the occurrence of a distribution event described in Articles 5 through 9, as applicable, the Participant may petition
the Committee to receive a partial or full payout from the Plan. The payout, if any, from the Plan shall not exceed the lesser of (i) the Participant's vested Account Balance, calculated as of
the close of business on or around the Benefit Distribution Date for such payout, as determined by the Committee in accordance with provisions set forth below, or (ii) the amount necessary to
satisfy the Unforeseeable Emergency, plus amounts necessary to pay Federal, state, or local income taxes or penalties reasonably anticipated as a result of the distribution. A Participant shall not be
eligible to receive a payout from the Plan to the extent that the Unforeseeable Emergency is or may be relieved (A) through reimbursement or compensation by insurance or otherwise,
(B) by liquidation of the Participant's assets, to the extent the liquidation of such assets would not itself cause severe financial hardship or (C) by cessation of deferrals under this
Plan. 

13

 

	

	If
the Committee, in its sole discretion, approves a Participant's petition for payout from the Plan, the Participant's Benefit Distribution Date for such payout shall be
the date on which such Committee approval occurs and such payout shall be distributed to the Participant in a lump sum no later than 60 days after such Benefit Distribution Date. In addition,
in the event of such approval the Participant's outstanding deferral elections under the Plan shall be cancelled.

	(b)
	A
Participant's deferral elections under this Plan shall also be cancelled to the extent the Committee determines that such action is required for the Participant to obtain a hardship
distribution from an Employer's 401(k) Plan pursuant to Treas. Reg. §1.401(k)-1(d)(3). 

 
 

ARTICLE 5
  Change in Control Benefit    
    

	5.1
	Change in Control Benefit.    A Participant, in connection with his or her commencement of participation in the Plan, shall
have an opportunity to irrevocably elect to receive his or her vested Account Balance in the form of a lump sum payment in the event that a Change in Control occurs prior to the Participant's
Separation from Service, Disability or death (the "Change in Control Benefit"). The Benefit Distribution Date for the Change in Control Benefit, if any, shall be the date on which the Change in
Control occurs.

	

	If
a Participant elects not to receive a Change in Control Benefit, or fails to make an election in connection with his or her commencement of participation in the Plan,
the Participant's Account Balance shall be paid in accordance with the other applicable provisions of the Plan.

	5.2
	Payment of Change in Control Benefit.    The Change in Control Benefit, if any, shall be calculated as of the close of
business on or around the Participant's Benefit Distribution Date, as determined by the Committee, and paid to the Participant no later than 60 days after the Participant's Benefit Distribution
Date. 

 
 

ARTICLE 6
  Retirement Benefit    
    

	6.1
	Retirement Benefit.    If a Participant experiences a Separation from Service that qualifies as a Retirement, the Participant
shall be eligible to receive his or her vested Account Balance in either a lump sum or annual installment payments, as elected by the Participant in accordance with Section 6.2 (the "Retirement
Benefit"). A Participant's Retirement Benefit shall be calculated as of the close of business on or around the applicable Benefit Distribution Date for such benefit, which shall be (i) the
first day after the end of the 6-month period immediately following the date on which the Participant experiences such Separation from Service if the Participant is a Specified Employee,
and (ii) for all other Participants, the date on which the Participant experiences a Separation from Service; provided, however, if a Participant changes the form of distribution for one or
more Annual Accounts in accordance with Section 6.2(b), the Benefit Distribution Date for the Annual Account(s) subject to such change shall be determined in accordance with
Section 6.2(b).

	6.2
	Payment of Retirement Benefit.

	(a)
	In
connection with a Participant's election to defer an Annual Deferral Amount, the Participant shall elect the form in which his or her Annual Account for such Plan Year will be
paid. The Participant may elect to receive each Annual Account in the form of a lump sum or pursuant to an Annual Installment Method of 5, 10 or 15 years. If a Participant does not make any
election with respect to the payment of an Annual Account, then the Participant shall be deemed to have elected to receive such Annual Account as a lump sum. 

14

 

	(b)
	A
Participant may change the form of payment for an Annual Account by submitting an Election Form to the Committee in accordance with the following criteria:

	(i)
	The
election shall not take effect until at least 12 months after the date on which the election is made;

	(ii)
	The
new Benefit Distribution Date for such Annual Account shall be 5 years after the Benefit Distribution Date that would otherwise have been applicable to such
Annual Account; and

	(iii)
	The
election must be made at least 12 months prior to the Benefit Distribution Date that would otherwise have been applicable to such Annual Account.

	

	For
purposes of applying the provisions of this Section 6.2(b), a Participant's election to change the form of payment for an Annual Account shall not be considered
to be made until the date on which the election becomes irrevocable. Such an election shall become irrevocable no later than the date that is 12 months prior to the Benefit Distribution Date
that would otherwise have been applicable to such Annual Account. Subject to the requirements of this Section 6.2(b), the Election Form most recently accepted by the Committee that has become
effective for an Annual Account shall govern the form of payout of such Annual Account.

	(c)
	The
lump sum payment shall be made, or installment payments shall commence, no later than 60 days after the applicable Benefit Distribution Date. Remaining installments, if
any, shall continue in accordance with the Participant's election for each Annual Account and shall be paid no later than 60 days after each anniversary of the Benefit Distribution Date. 

 
 

ARTICLE 7
  Termination Benefit    
    

	7.1
	Termination Benefit.    If a Participant experiences a Separation from Service that does not qualify as a Retirement, the
Participant shall be eligible to receive his or her vested Account Balance in either a lump sum or annual installment payments, as elected by the Participant in accordance with Section 7.2 (the
"Termination Benefit"). A Participant's Termination Benefit shall be calculated as of the close of business on or around the applicable Benefit Distribution Date for such benefit, which shall be
(i) the first day after the end of the 6-month period immediately following the date on which the Participant experiences such Separation from Service if the Participant is a
Specified Employee, and (ii) for all other Participants, the date on which the Participant experiences a Separation from Service; provided, however, if a Participant changes the form of
distribution for one or more Annual Accounts in accordance with Section 7.2(b), the Benefit Distribution Date for the Annual Account(s) subject to such change shall be determined in accordance
with Section 7.2(b).

	7.2
	Payment of Termination Benefit.

	(a)
	In
connection with a Participant's election to defer an Annual Deferral Amount, the Participant shall elect the form in which his or her Annual Account for such Plan Year will be
paid. The Participant may elect to receive each Annual Account in the form of a lump sum or pursuant to an Annual Installment Method over a three-year
period. If a Participant does not make any election with respect to the payment of an Annual Account, then the Participant shall be deemed to have
elected to receive such Annual Account as a lump sum. 

15

  

	(b)
	A
Participant may change the form of payment for an Annual Account by submitting an Election Form to the Committee in accordance with the following criteria:

	(i)
	The
election shall not take effect until at least 12 months after the date on which the election is made;

	(ii)
	The
new Benefit Distribution Date for such Annual Account shall be 5 years after the Benefit Distribution Date that would otherwise have been applicable to such
Annual Account; and

	(iii)
	The
election must be made at least 12 months prior to the Benefit Distribution Date that would otherwise have been applicable to such Annual Account.

	

	For
purposes of applying the provisions of this Section 7.2(b), a Participant's election to change the form of payment for an Annual Account shall not be considered
to be made until the date on which the election becomes irrevocable. Such an election shall become irrevocable no later than the date that is 12 months prior to the Benefit Distribution Date
that would otherwise have been applicable to such Annual Account. Subject to the requirements of this Section 6.2(b), the Election Form most recently accepted by the Committee that has become
effective for an Annual Account shall govern the form of payout of such Annual Account.

	(c)
	The
lump sum payment shall be made, or installment payments shall commence, no later than 60 days after the applicable Benefit Distribution Date. Remaining installments, if
any, shall continue in accordance with the Participant's election for each Annual Account and shall be paid no later than 60 days after each anniversary of the Benefit Distribution Date. 

 
 

ARTICLE 8
  Disability Benefit    
    

	8.1
	Disability Benefit.    If a Participant becomes Disabled prior to the occurrence of a distribution event described in
Articles 5 through 7, as applicable, the Participant shall be eligible to receive his or her vested Account Balance in either a lump sum or annual installment payments, as elected by the Participant
in accordance with Section 8.2 (the "Disability Benefit"). A Participant's Disability Benefit shall be calculated as of the close of business on or around the applicable Benefit Distribution
Date for such benefit, which shall be the date on which the Participant becomes Disabled provided, however, if a Participant changes the form of distribution for one or more Annual Accounts in
accordance with Section 8.2(b), the Benefit Distribution Date for the Annual Account(s) subject to such change shall be determined in accordance with Section 8.2(b).

	8.2
	Payment of Disability Benefit.

	(a)
	A
Participant, in connection with his or her commencement of participation in the Plan, shall elect on an Election Form to receive the Disability Benefit in a lump sum or pursuant to
an Annual Installment Method of 5, 10 or 15 years. If a Participant does not make any election with respect to the payment of the Disability Benefit, then such Participant shall be deemed to
have elected to receive the Disability Benefit as a lump sum.

	(b)
	A
Participant may change the form of payment for the Disability Benefit by submitting an Election Form to the Committee; provided that the election shall not take effect until at
least 12 months after the date on which the election is made. For purposes of applying the provisions of this Section 8.2, a Participant's election to change the form of payment for the
Disability Benefit shall not be considered to be made until the date on which the election becomes irrevocable. Such an election shall become irrevocable no later than the date that is 

16

 

12 months
prior to the Benefit Distribution Date that would otherwise have been applicable to the Participant's Disability Benefit. Subject to the requirements of this Section 8.2, the
Election Form most recently accepted by the Committee that has become effective shall govern the form of payout of the Participant's Disability Benefit. 

	(c)
	The
lump sum payment shall be made, or installment payments shall commence, no later than 60 days after the Participant's Benefit Distribution Date. Remaining installments, if
any, shall be paid no later than 60 days after each anniversary of the Participant's Benefit Distribution Date. 

 
 

ARTICLE 9
  Death Benefit    
    

	9.1
	Death Benefit.    In the event of a Participant's death prior to the complete distribution of his or her vested Account
Balance, the Participant's Beneficiary(ies) shall be eligible to receive the Participant's vested Account Balance in either a lump sum or annual installment payments, as elected by the Participant in
accordance with Section 9.2 (the "Death Benefit"). A Participant's Death Benefit shall be calculated as of the close of business on or around the applicable Benefit Distribution Date for such
benefit, which shall be the date on which the Committee is provided with proof that is satisfactory to the Committee of the Participant's death; provided, however, if a Participant changes the form of
distribution for one or more Annual Accounts in accordance with Section 9.2(b), the Benefit Distribution Date for the Annual Account(s) subject to such change shall be determined in accordance
with Section 9.2(b).

	9.2
	Payment of Death Benefit.

	(a)
	A
Participant, in connection with his or her commencement of participation in the Plan, shall elect on an Election Form to receive the Death Benefit in a lump sum or pursuant to an
Annual Installment Method of 5, 10 or 15 years. If a Participant does not make any election with respect to the payment of the Death Benefit, then such Participant shall be deemed to have
elected to receive the Death Benefit as a lump sum.

	(b)
	A
Participant may change the form of payment for the Death Benefit by submitting an Election Form to the Committee; provided that the election shall not take effect until at least
12 months after the date on which the election is made. For purposes of applying the provisions of this Section 9.2, a Participant's election to change the form of payment for the Death
Benefit shall not be considered to be made until the date on which the election becomes irrevocable. Such an election shall become irrevocable no later than the date that is 12 months prior to
the Benefit Distribution Date that would otherwise have been applicable to the Participant's Death Benefit. Subject to the requirements of this Section 9.2, the Election Form most recently
accepted by the Committee that has become effective shall govern the form of payout of the Participant's Death Benefit.

	(c)
	The
lump sum payment shall be made, or installment payments shall commence, no later than 60 days after the Participant's Benefit Distribution Date. Remaining installments, if
any, shall be paid no later than 60 days after each anniversary of the Participant's Benefit Distribution Date. 

 
 

ARTICLE 10
  Beneficiary Designation    
    

	10.1
	Beneficiary.    Each Participant shall have the right, at any time, to designate his or her Beneficiary(ies) (both primary
as well as contingent) to receive any benefits payable under the Plan to a beneficiary upon the death of a Participant. The Beneficiary designated under this Plan 

17

 

may
be the same as or different from the Beneficiary designation under any other plan of an Employer in which the Participant participates. 

	10.2
	Beneficiary Designation; Change; Spousal Consent.    A Participant shall designate his or her Beneficiary by completing and
signing the Beneficiary Designation Form, and returning it to the Committee or its designated agent. A Participant shall have the right to change a Beneficiary by completing, signing and otherwise
complying with the terms of the Beneficiary Designation Form and the Committee's rules and procedures, as in effect from time to time. If the Participant names someone other than his or her spouse as
a Beneficiary, the Committee may, in its sole discretion, determine that spousal consent is required to be provided in a form designated by the Committee, executed by such Participant's spouse and
returned to the Committee. Upon the acceptance by the Committee of a new Beneficiary Designation Form, all Beneficiary designations previously filed shall be canceled. The Committee shall be entitled
to rely on the last Beneficiary Designation Form filed by the Participant and accepted by the Committee prior to his or her death.

	10.3
	Acknowledgment.    No designation or change in designation of a Beneficiary shall be effective until received and
acknowledged in writing by the Committee or its designated agent.

	10.4
	No Beneficiary Designation.    If a Participant fails to designate a Beneficiary as provided in Sections 10.1, 10.2 and 10.3
above or, if all designated Beneficiaries predecease the Participant or die prior to complete distribution of the Participant's benefits, then the Participant's designated Beneficiary shall be deemed
to be his or her surviving spouse. If the Participant has no surviving spouse, the benefits remaining under the Plan to be paid to a Beneficiary shall be payable to the executor or personal
representative of the Participant's estate.

	10.5
	Doubt as to Beneficiary.    If the Committee has any doubt as to the proper Beneficiary to receive payments pursuant to this
Plan, the Committee shall have the right, exercisable in its discretion, to cause the Participant's Employer to withhold such payments until this matter is resolved to the Committee's satisfaction.

	10.6
	Discharge of Obligations.    The payment of benefits under the Plan to a Beneficiary shall fully and completely discharge
all Employers and the Committee from all further obligations under this Plan with respect to the Participant, and that Participant's Plan Agreement shall terminate upon such full payment of benefits. 

 
 

ARTICLE 11
  Leave of Absence    
    

	11.1
	Paid Leave of Absence.    If a Participant is authorized by the Participant's Employer to take a paid leave of absence from
the employment of the Employer, and such leave of absence does not constitute a Separation from Service, (a) the Participant shall continue to be considered eligible for the benefits provided
under the Plan, and (b) the Annual Deferral Amount shall continue to be withheld during such paid leave of absence in accordance with Section 3.2.

	11.2
	Unpaid Leave of Absence.    If a Participant is authorized by the Participant's Employer to take an unpaid leave of absence
from the employment of the Employer for any reason, and such leave of absence does not constitute a Separation from Service, such Participant shall continue to be eligible for the benefits provided
under the Plan. During the unpaid leave of absence, the Participant shall not be allowed to make any additional deferral elections. However, if the Participant returns to employment, the Participant
may elect to defer an Annual Deferral Amount for the Plan Year following his or her return to employment and for every Plan Year thereafter while a Participant in the Plan, provided such deferral
elections are otherwise allowed 

18

 

and
an Election Form is delivered to and accepted by the Committee for each such election in accordance with Section 3.2 above. 

 
 

ARTICLE 12
  Termination of Plan, Amendment or Modification    
    

	12.1
	Termination of Plan.    Although each Employer anticipates that it will continue the Plan for an indefinite period of time,
there is no guarantee that any Employer will continue the Plan or will not terminate the Plan at any time in the future. Accordingly, each Employer reserves the right to terminate the Plan with
respect to all of its Participants. In the event of a Plan termination no new deferral elections shall be permitted for the affected Participants and such Participants shall no longer be eligible to
receive new company contributions. However, after the Plan termination the Account Balances of such Participants shall continue to be credited with Annual Deferral Amounts attributable to a deferral
election that was in effect prior to the Plan termination to the extent deemed necessary to comply with Code Section 409A and related Treasury Regulations, and additional amounts shall continue
to credited or debited to such Participants' Account Balances pursuant to Section 3.7. The Measurement Funds available to Participants following the termination of the Plan shall be comparable
in number and type to those Measurement Funds available to Participants in the Plan Year preceding the Plan Year in which the Plan termination is effective. In addition, following a Plan termination,
Participant Account Balances shall remain in the Plan and shall not be distributed until such amounts become eligible for distribution in accordance with the other applicable provisions of the Plan.
Notwithstanding the preceding sentence, to the extent permitted by Treas. Reg. §1.409A-3(j)(4)(ix), the Employer may provide that upon termination of the Plan, all Account
Balances of the Participants shall be distributed, subject to and in accordance with any rules established by such Employer deemed necessary to comply with the applicable requirements and limitations
of Treas. Reg. §1.409A-3(j)(4)(ix).

	12.2
	Amendment.    Any Employer may, at any time, amend or modify the Plan in whole or in part with respect to that Employer.
Notwithstanding the foregoing, (i) no amendment or modification shall be effective to decrease the value of a Participant's vested Account Balance in existence at the time the amendment or
modification is made, and (ii) no amendment or modification of this Section 12.2 or Section 13.2 of the Plan shall be effective unless and until two-thirds
(2/3) of Participants with an Account Balance in the Plan as of the date of such proposed amendment or modification provide prior written consent in a time and manner determined by the
Committee.

	12.3
	Plan Agreement.    Despite the provisions of Sections 12.1, if a Participant's Plan Agreement contains benefits or
limitations that are not in this Plan document, the Employer may only amend or terminate such provisions with the written consent of the Participant.

	12.4
	Effect of Payment.    The full payment of the Participant's vested Account Balance in accordance with the applicable
provisions of the Plan shall completely discharge all obligations to a Participant and his or her designated Beneficiaries under this Plan, and the Participant's Plan Agreement shall terminate. 

 
 

ARTICLE 13
  Administration    
    

	13.1
	Committee Duties.    Except as otherwise provided in this Article 13, this Plan shall be administered by a Committee,
which shall consist of the Board, or such committee as the Board shall appoint. Members of the Committee may be Participants under this Plan. The Committee shall also have the discretion and authority
to (a) make, amend, interpret, and enforce all appropriate rules and regulations for the administration of this Plan, and (b) decide or resolve any and all questions, including benefit
entitlement determinations and interpretations of this 

19

 

Plan,
as may arise in connection with the Plan. Any individual serving on the Committee who is a Participant shall not vote or act on any matter relating solely to himself or herself. When making a
determination or calculation, the Committee shall be entitled to rely on information furnished by a Participant or the Company. 

	13.2
	Administration Upon Change In Control.    Within 120 days following a Change in Control, the individuals who
comprised the Committee immediately prior to the Change in Control (whether or not such individuals are members of the Committee following the Change in Control) may, by written consent of the
majority of such individuals, appoint an independent third party administrator (the "Administrator") to perform any or all of the Committee's duties described in Section 13.1 above, including
without limitation, the power to determine any questions arising in connection with the administration or interpretation of the Plan, and the power to make benefit entitlement determinations. Upon and
after the effective date of such appointment, (a) the Company must pay all reasonable administrative expenses and fees of the Administrator, and (b) the Administrator may only be
terminated with the written consent of the majority of Participants with an Account Balance in the Plan as of the date of such proposed termination.

	13.3
	Agents.    In the administration of this Plan, the Committee or the Administrator, as applicable, may, from time to time,
employ agents and delegate to them such administrative duties as it sees fit (including acting through a duly appointed representative) and may from time to time consult with counsel.

	13.4
	Binding Effect of Decisions.    The decision or action of the Committee or Administrator, as applicable, with respect to any
question arising out of or in connection with the administration, interpretation and application of the Plan and the rules and regulations promulgated hereunder shall be final and conclusive and
binding upon all persons having any interest in the Plan.

	13.5
	Indemnity of Committee.    All Employers shall indemnify and hold harmless the members of the Committee, any Employee to
whom the duties of the Committee may be delegated, and the Administrator against any and all claims, losses, damages, expenses or liabilities arising from any action or failure to act with respect to
this Plan, except in the case of willful misconduct by the Committee, any of its members, any such Employee or the Administrator.

	13.6
	Employer Information.    To enable the Committee and/or Administrator to perform its functions, the Company and each
Employer shall supply full and timely information to the Committee and/or Administrator, as the case may be, on all matters relating to the Plan, the Trust, the Participants and their Beneficiaries,
the Account Balances of the Participants, the compensation of its Participants, the date and circumstances of the Separation from Service, Disability or death of its Participants, and such other
pertinent information as the Committee or Administrator may reasonably require. 

 
 

ARTICLE 14
  Other Benefits and Agreements    
    

	14.1
	Coordination with Other Benefits.    The benefits provided for a Participant and Participant's Beneficiary under the Plan
are in addition to any other benefits available to such Participant under any other plan or program for employees of the Participant's Employer. The Plan shall supplement and shall not supersede,
modify or amend any other such plan or program except as may otherwise be expressly provided. 

20

 
 
 

ARTICLE 15
  Claims Procedures    
    

	15.1
	Presentation of Claim.    Any Participant or Beneficiary of a deceased Participant (such Participant or Beneficiary being
referred to below as a "Claimant") may deliver to the Committee a written claim for a determination with respect to the amounts distributable to such Claimant from the Plan. If such a claim relates to
the contents of a notice received by the Claimant, the claim must be made within 60 days after such notice was received by the Claimant. All other claims must be made within 180 days of
the date on which the event that caused the claim to arise occurred. The claim must state with particularity the determination desired by the Claimant.

	15.2
	Notification of Decision.    The Committee shall consider a Claimant's claim within a reasonable time, but no later than
90 days after receiving the claim. If the Committee determines that special circumstances require an extension of time for processing the claim, written notice of the extension shall be
furnished to the Claimant prior to the termination of the initial 90 day period. In no event shall such extension exceed a period of 90 days from the end of the initial period. The
extension notice shall indicate the special circumstances requiring an extension of time and the date by which the Committee expects to render the benefit determination. The Committee shall notify the
Claimant in writing:

	(a)
	That
the Claimant's requested determination has been made, and that the claim has been allowed in full; or

	(b)
	That
the Committee has reached a conclusion contrary, in whole or in part, to the Claimant's requested determination, and such notice must set forth in a manner calculated to be
understood by the Claimant:

	(i)
	The
specific reason(s) for the denial of the claim, or any part of it;

	(ii)
	Specific
reference(s) to pertinent provisions of the Plan upon which such denial was based;

	(iii)
	A
description of any additional material or information necessary for the Claimant to perfect the claim, and an explanation of why such material or information is
necessary;

	(iv)
	An
explanation of the claim review procedure set forth in Section 15.3 below; and

	(v)
	A
statement of the Claimant's right to bring a civil action under ERISA Section 502(a) following an adverse benefit determination on review.

	15.3
	Review of a Denied Claim.    On or before 60 days after receiving a notice from the Committee that a claim has been
denied, in whole or in part, a Claimant (or the Claimant's duly authorized representative) may file with the Committee a written request for a review of the denial of the claim. The Claimant (or the
Claimant's duly authorized representative):

	(a)
	May,
upon request and free of charge, have reasonable access to, and copies of, all documents, records and other information relevant (as defined in applicable ERISA regulations) to
the claim for benefits;

	(b)
	May
submit written comments or other documents; and/or

	(c)
	May
request a hearing, which the Committee, in its sole discretion, may grant.

	15.4
	Decision on Review.    The Committee shall render its decision on review promptly, and no later than 60 days after
the Committee receives the Claimant's written request for a review of the denial of the claim. If the Committee determines that special circumstances require an extension of time for processing the
claim, written notice of the extension shall be furnished to the Claimant prior to the termination of the initial 60 day period. In no event shall such extension 

21

 

exceed
a period of 60 days from the end of the initial period. The extension notice shall indicate the special circumstances requiring an extension of time and the date by which the Committee
expects to render the benefit determination. In rendering its decision, the Committee shall take into account all comments, documents, records and other information submitted by the Claimant relating
to the claim, without regard to whether such information was submitted or considered in the initial benefit determination. The decision must be written in a manner calculated to be understood by the
Claimant, and it must contain: 

	(a)
	Specific
reasons for the decision;

	(b)
	Specific
reference(s) to the pertinent Plan provisions upon which the decision was based;

	(c)
	A
statement that the Claimant is entitled to receive, upon request and free of charge, reasonable access to and copies of, all documents, records and other information relevant (as
defined in applicable ERISA regulations) to the Claimant's claim for benefits; and

	(d)
	A
statement of the Claimant's right to bring a civil action under ERISA Section 502(a).

	15.5
	Legal Action.    A Claimant's compliance with the foregoing provisions of this Article 15 is a mandatory prerequisite
to a Claimant's right to commence any legal action with respect to any claim for benefits under this Plan. 

 
 

ARTICLE 16
  Trust    
    

	16.1
	Establishment of the Trust.    In order to provide assets from which to fulfill its obligations to the Participants and
their Beneficiaries under the Plan, the Company may establish a trust by a trust agreement with a third party, the trustee, to which each Employer may, in its discretion, contribute cash or other
property, including securities issued by the Company, to provide for the benefit payments under the Plan (the "Trust").

	16.2
	Interrelationship of the Plan and the Trust.    The provisions of the Plan and the Plan Agreement shall govern the rights of
a Participant to receive distributions pursuant to the Plan. The provisions of the Trust shall govern the rights of the Employers, Participants and the creditors of the Employers to the assets
transferred to the Trust. Each Employer shall at all times remain liable to carry out its obligations under the Plan.

	16.3
	Distributions From the Trust.    Each Employer's obligations under the Plan may be satisfied with Trust assets distributed
pursuant to the terms of the Trust, and any such distribution shall reduce the Employer's obligations under this Plan. 

 
 

ARTICLE 17
  Miscellaneous    
    

	17.1
	Status of Plan.    The Plan is intended to be a plan that is not qualified within the meaning of Code Section 401(a)
and that "is unfunded and is maintained by an employer primarily for the purpose of providing deferred compensation for a select group of management or highly compensated employees" within the meaning
of ERISA Sections 201(2), 301(a)(3) and 401(a)(1). The Plan shall be administered and interpreted (a) to the extent possible in a manner consistent with the intent described in the preceding
sentence, and (b) in accordance with Code Section 409A and related Treasury guidance and Regulations.

	17.2
	Unsecured General Creditor.    Participants and their Beneficiaries, heirs, successors and assigns shall have no legal or
equitable rights, interests or claims in any property or assets of an Employer. For purposes of the payment of benefits under this Plan, any and all of an Employer's assets shall be, and remain, the
general, unpledged unrestricted assets of the Employer. An 

22

 

Employer's
obligation under the Plan shall be merely that of an unfunded and unsecured promise to pay money in the future. 

	17.3
	Employer's Liability.    An Employer's liability for the payment of benefits shall be defined only by the Plan and the Plan
Agreement, as entered into between the Employer and a Participant. An Employer shall have no obligation to a Participant under the Plan except as expressly provided in the Plan and his or her Plan
Agreement.

	17.4
	Nonassignability.    Neither a Participant nor any other person shall have any right to commute, sell, assign, transfer,
pledge, anticipate, mortgage or otherwise encumber, transfer, hypothecate, alienate or convey in advance of actual receipt, the amounts, if any, payable hereunder, or any part thereof, which are, and
all rights to which are expressly declared to be, unassignable and non-transferable. No part of the amounts payable shall, prior to actual payment, be subject to seizure, attachment,
garnishment or sequestration for the payment of any debts, judgments, alimony or separate maintenance owed by a Participant or any other person, be transferable by operation of law in the event of a
Participant's or any other person's bankruptcy or insolvency or be transferable to a spouse as a result of a property settlement or otherwise.

	17.5
	Not a Contract of Employment.    The terms and conditions of this Plan shall not be deemed to constitute a contract of
employment between any Employer and the Participant. Such employment is hereby acknowledged to be an "at will" employment relationship that can be terminated at any time for any reason, or no reason,
with or without cause, and with or without notice, unless expressly provided in a written employment agreement. Nothing in this Plan shall be deemed to give a Participant the right to be retained in
the service of any Employer, either as an Employee or a Director, or to interfere with the right of any Employer to discipline or discharge the Participant at any time.

	17.6
	Furnishing Information.    A Participant or his or her Beneficiary will cooperate with the Committee by furnishing any and
all information requested by the Committee and take such other actions as may be requested in order to facilitate the administration of the Plan and the payments of benefits hereunder, including but
not limited to taking such physical examinations as the Committee may deem necessary.

	17.7
	Terms.    Whenever any words are used herein in the masculine, they shall be construed as though they were in the feminine
in all cases where they would so apply; and whenever any words are used herein in the singular or in the plural, they shall be construed as though they were used in the plural or the singular, as the
case may be, in all cases where they would so apply.

	17.8
	Captions.    The captions of the articles, sections and paragraphs of this Plan are for convenience only and shall not
control or affect the meaning or construction of any of its provisions.

	17.9
	Governing Law.    Subject to ERISA, the provisions of this Plan shall be construed and interpreted according to the internal
laws of the State of Delaware without regard to its conflicts of laws principles.

	17.10
	Notice.    Any notice or filing required or permitted to be given to the Committee under this Plan shall be sufficient if
in writing and hand-delivered, or sent by registered or certified mail, to the address below: 

	 	 	Tetra Tech, Inc.

3475 E. Foothill Boulevard

Pasadena, CA 91107
	 	 	Attention:	Kevin McDonald

Vice President

Corporate Human Resources

23

 
	

	Such
notice shall be deemed given as of the date of delivery or, if delivery is made by mail, as of the date shown on the postmark on the receipt for registration or
certification.

	

	Any
notice or filing required or permitted to be given to a Participant under this Plan shall be sufficient if in writing and hand-delivered, or sent by mail,
to the last known address of the Participant.

	17.11
	Successors.    The provisions of this Plan shall bind and inure to the benefit of the Participant's Employer and its
successors and assigns and the Participant and the Participant's designated Beneficiaries.

	17.12
	Spouse's Interest.    The interest in the benefits hereunder of a spouse of a Participant who has predeceased the
Participant shall automatically pass to the Participant and shall not be transferable by such spouse in any manner, including but not limited to such spouse's will, nor shall such interest pass under
the laws of intestate succession.

	17.13
	Validity.    In case any provision of this Plan shall be illegal or invalid for any reason, said illegality or invalidity
shall not affect the remaining parts hereof, but this Plan shall be construed and enforced as if such illegal or invalid provision had never been inserted herein.

	17.14
	Incompetent.    If the Committee determines in its discretion that a benefit under this Plan is to be paid to a minor, a
person declared incompetent or to a person incapable of handling the disposition of that person's property, the Committee may direct payment of such benefit to the guardian, legal representative or
person having the care and custody of such minor, incompetent or incapable person. The Committee may require proof of minority, incompetence, incapacity or guardianship, as it may deem appropriate
prior to distribution of the benefit. Any payment of a benefit shall be a payment for the account of the Participant and the Participant's Beneficiary, as the case may be, and shall be a complete
discharge of any liability under the Plan for such payment amount.

	17.15
	Domestic Relations Orders.    If necessary to comply with a domestic relations order, as defined in Code
Section 414(p)(1)(B), pursuant to which a court has determined that a spouse or former spouse of a Participant has an interest in the Participant's benefits under the Plan, the Committee shall
have the right to immediately distribute the spouse's or former spouse's interest in the Participant's benefits under the Plan to such spouse or former spouse.

	17.16
	Distribution in the Event of Income Inclusion Under Code Section 409A.    If any portion of a Participant's Account
Balance under this Plan is required to be included in income by the Participant prior to receipt due to a failure of this Plan to comply with the requirements of Code Section 409A and related
Treasury Regulations, the Committee may determine that such Participant shall receive a distribution from the Plan in an amount equal to the lesser of (i) the portion of his or her Account
Balance required to be included in income as a result of the failure of the Plan to comply with the requirements of Code Section 409A and related Treasury Regulations, or (ii) the unpaid
vested Account Balance.

	17.17
	Deduction Limitation on Benefit Payments.    If an Employer reasonably anticipates that the Employer's deduction with
respect to any distribution from this Plan would be limited or eliminated by application of Code Section 162(m), then to the extent permitted by Treas. Reg.
§1.409A-2(b)(7)(i), payment shall be delayed as deemed necessary to ensure that the entire amount of any distribution from this Plan is deductible. Any amounts for which
distribution is delayed pursuant to this Section shall continue to be credited/debited with additional amounts in accordance with Section 3.7. The delayed amounts (and any amounts credited
thereon) shall be distributed to the Participant (or his or her Beneficiary in the event of the Participant's death) at the earliest date the Employer reasonably anticipates that the deduction of the
payment of the amount will not be limited or eliminated by application of Code Section 162(m). In the event 

24

 

that
such date is determined to be after a Participant's Separation from Service and the Participant to whom the payment relates is determined to be a Specified Employee, then to the extent deemed
necessary to comply with Treas. Reg. §1.409A-3(i)(2), the delayed payment shall not made before the end of the six-month period following such Participant's
Separation from Service. 

        IN
WITNESS WHEREOF, the Company has signed this Plan document as of the 26th day of November, 2007. 

	 	 	"Company"
	

 	
 	

Tetra Tech, Inc.,

a Delaware corporation
	

 	
 	

By:	

/s/  DAN L. BATRACK      

	

 	
 	

Title:	

Chief Executive Officer

25

 
 
 

APPENDIX A    
    
    LIMITED TRANSITION RELIEF FOR DISTRIBUTION ELECTIONS MADE AVAILABLE IN
  ACCORDANCE WITH NOTICE 2006-79, AS MODIFIED BY
  NOTICE 2007-86    

        The capitalized terms below shall have the same meaning as provided in Article 1 of the Plan. 

        Opportunity to Make New (or Revise Existing) Distribution Elections.    Notwithstanding the required
deadline for the submission of an initial distribution election under Articles 4, 5, 6, 7, 8 and 9 of the Plan, the Committee may, to the extent permitted by
Notice 2006-79, as modified by Notice 2007-86, provide a limited period in which Participants may make new distribution elections, or revise existing distribution
elections, with respect to amounts subject to the terms of the Plan, by submitting an Election Form on or before the deadline established by the Committee, which in no event shall be later than
December 31, 2008. Any distribution election(s) made by a Participant, and accepted by the Committee, in accordance with this Appendix A shall not be treated as a change in either the
form or timing of a Participant's benefit payment for purposes of Code Section 409A or the Plan. If any distribution election submitted by a Participant in accordance with this
Appendix A either (a) relates to an amount that would otherwise be paid to the Participant (or his or her Beneficiary(ies) in 2007 or would cause an amount to be paid to the Participant
(or his or her Beneficiary(ies) in 2007, or (b) if not made prior to January 1, 2008, relates to an amount that would otherwise be paid to the participant (or his or her Beneficiary(ies)
in 2008 or would cause an amount to be paid to the Participant (or his or her Beneficiary(ies) in 2008, such election shall not be effective. 

26

QuickLinks

Exhibit 10.17

Tetra Tech, Inc. Deferred Compensation Plan

TABLE OF CONTENTS

Purpose

ARTICLE 1 Definitions

ARTICLE 2 Selection, Enrollment, Eligibility

ARTICLE 3 Deferral Commitments/Company Contribution Amounts/ Company Restoration Matching Amounts/ Vesting/Crediting/Taxes

ARTICLE 4 Scheduled Distribution; Unforeseeable Emergencies

ARTICLE 5 Change in Control Benefit

ARTICLE 6 Retirement Benefit

ARTICLE 7 Termination Benefit

ARTICLE 8 Disability Benefit

ARTICLE 9 Death Benefit

ARTICLE 10 Beneficiary Designation

ARTICLE 11 Leave of Absence

ARTICLE 12 Termination of Plan, Amendment or Modification

ARTICLE 13 Administration

ARTICLE 14 Other Benefits and Agreements

ARTICLE 15 Claims Procedures

ARTICLE 16 Trust

ARTICLE 17 Miscellaneous

APPENDIX A LIMITED TRANSITION RELIEF FOR DISTRIBUTION ELECTIONS MADE AVAILABLE IN ACCORDANCE WITH NOTICE 2006-79, AS MODIFIED BY NOTICE 2007-86QuickLinks
 -- Click here to rapidly navigate through this document

 
 

Exhibit 4.1    
    

[FACE
OF CERTIFICATE—EDUCATION MEDIA INC.] 

UNITS 

U 

SEE
REVERSE FOR CERTAIN DEFINITIONS 

CUSIP
28140C 204 

EDUCATION
MEDIA INC. 

UNITS
CONSISTING OF ONE SHARE OF COMMON STOCK AND ONE WARRANT EACH TO PURCHASE ONE SHARE OF COMMON STOCK 

This
Certifies that 

is
the owner of 

Units.

Each
Unit ("Unit") consists of one (1) share of common stock, par value $.0001 per share ("Common Stock"), of EDUCATION MEDIA INC., a Delaware corporation (the "Company"), and one
warrant
(the "Warrant"). Each Warrant entitles the holder to purchase one (1) share of Common Stock for $7.50 per share (subject to adjustment). Each Warrant will become exercisable on the later of
(i) the Company's completion of a business combination with a target business or (ii)                 , 2009 and will expire unless exercised before
5:00 p.m., Eastern Time, on
                , 2013, or earlier upon redemption (the "Expiration Date"). The Common Stock and Warrant comprising the Units represented by this certificate are not
transferable prior to
                , 2008, subject to earlier separation in the discretion of the representative of the underwriters; provided, however, in no event will the representative
of the underwriters allow
separate trading of the common stock and warrants until the Company files a Current Report on Form 8-K with the Securities and Exchange Commission containing an audited balance
sheet reflecting the Company's receipt of the gross proceeds of the offering and issuing a press release announcing when such Reports trading will begin. The terms of the Warrants are governed by a
Warrant Agreement, dated as of                , 2007, between the Company and Continental Stock Transfer & Trust Company, as Warrant Agent, and are subject to
the terms and provisions contained
therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the Warrant Agent at 17 Battery
Place, New York, New York 10004, and are available to any Warrant holder on written request and without cost. This certificate is not valid unless countersigned by the Transfer Agent and Registrar of
the Company. 

Witness
the facsimile seal of the Company and the facsimile signature of its duly authorized officers. 

COUNTERSIGNED
AND REGISTERED:

CONTINENTAL STOCK TRANSFER & TRUST COMPANY

TRANSFER AGENT AND REGISTRAR

BY:

AUTHORIZED OFFICER 

By

(SIGNATURE)

CHIEF EXECUTIVE OFFICER 

(SEAL) 

(SIGNATURE)

SECRETARY 

[REVERSE
OF CERTIFICATE] 

EDUCATION
MEDIA INC. 

The
Company will furnish without charge to each stockholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional or other special rights of each
class of stock or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights. 

The
following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: 

TEN
COM—as tenants in common

TEN ENT—as tenants by the entireties

JT TEN—as joint tenants with right of survivorship and not as tenants in common 

	UNIF GIFT MIN ACT—	 	 	 	Custodian	 	 	 	 
	 	 	
 (Cust)	 	 	 	
 (Minor)	 	 
	under Uniform Gifts to Minors Act	 	 	 	 	 	 
	 	 	 	 	
 (State)	 	 

Additional
abbreviations may also be used though not in the above list. 

For
value received                         , hereby sell, assign and transfer unto 

PLEASE
INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE 

	
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	 
	

	 
	
 Units represented by the within Certificate, and do hereby irrevocably constitute and appoint
	 
	
 Attorney to transfer the said Units on the books of the within named Company with full power of substitution in the premises.

Dated:

Notice:
The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever. 

Signature(s)
Guaranteed: 

	By	 	 	 	 
	 	 	
	 	 
	THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION
PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

The
holder of this certificate shall be entitled to receive funds from the trust account only in the event of the Company's liquidation or if the holder seeks to convert his respective shares into
cash upon a business combination which he voted against and which is actually completed by the Company. In no other circumstances shall the holder have any right or interest of any kind in or to the
trust account. 

QuickLinks

Exhibit 4.1

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