AMENDMENT NO. 4 to 
Port of Seattle and City of SeaTac 2005 Interlocal Agreement (ILA-2) 
Entered into on February 16, 2006 
In accordance with the provisions of the Port of Seattle and City of SeaTac Interlocal
Agreement 2005 Interlocal Agreement and its Amendments No. 1, 2, and 3, (ILA-2), and
the provisions of the Interlocal Cooperation Act, Chapter 34.39 RCW, the Port and the
City, collectively referred to as the "Parties," agree to the following Amendment No. 4 of
ILA-2 as follows (additions in underline, deletions in strikethrough): 
A. Paragraph 10 of ILA-2 is amended as follows: 
10. Term of Agreement.  This Agreement shall be binding on the parties until
February 16, 2018.  Either party may request review of the Agreement upon
notifying the other party in writing. Upon receipt of such notice, the parties shall 
promptly and in good faith meet to discuss any revisions to this Agreement
desired by either party. The procedures and standards set forth in this Agreement,
including  all  of  the  Exhibits,  shall  be  applicable  during  the  term  of  the
Agreement. Neither the Port nor City shall modify or add new conditions to those
set forth in this Agreement during the term of this Agreement unless either (a) the
parties have mutually agreed to those changes, or (b) either party, after discussion
with the other party and a public hearing, determines in good faith that changes
are required to respond to a serious threat to public health or safety. 
B.   Section  5.4.3  of  EXHIBIT  C,  INTERAGENCY  COOPERATION  &
DEVELOPMENT COMMITMENTS, of ILA-2 is amended as follows 
5.4.3   Parking Tax. The parties agree that the parking tax collected by the City
until February 16, 2016 shall be applied according to the CIP as shown in the
funding  plan  in  the  Joint  Transportation  Study  (JTS)  or  as  modified  by
amendment to this agreement and summarized in Attachment C-1.  The annual
parking tax revenue projections for both Port-owned lots and private lots were
forecast for the next ten years in a study prepared by Berk and Associates.  This
revenue forecast, including the parking tax revenue projections and each party's
financial commitments to particular CIP projects, is described in Attachment C-1 
and Attachment C-2. Based on the projections in this study, the parties agree to
allocate the actual parking tax revenues collected until February 16, 2016 between
the parties to fund the CIP projects in the following percentages through the term
of this ILA.  The amount of funds dedicated to the South Access, Connecting
28th/24th Avenue South, South 170th Street Roundabout and SR 518 projects shall
be 22% of the actual revenues with the following limitations: no more than $5
million can be spent on the SR 518 project, no more than $4 million can be spent
on the Connecting 28th/24th Avenue South project, and no more than $1 million
can be spent on the South 170th Street Roundabout project.  The City will
reconcile the amount of parking tax remaining after February 16, 2015 under this
Section, and will notify the Port by July 1, 2016 as to the remaining amount. The

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Parties anticipate that the total remaining parking tax funds available under this
Section will be approximately $3.0 million.  The Parties agree the remaining
parking tax funds should be spent on a transportation project that mitigates
impacts on City traffic and/or provides airport access. The Parties shall work
together  to  identify  an  appropriate  project(s)  for  the  expenditure  of  these
remaining parking tax funds. 
In addition, if the actual revenues fall short of the forecasted revenues over
a two year period, then the parties shall pursue the following options to correct
parking tax revenue shortfalls: 
a. Actual Revenues Are 90% or less of the Forecasted Revenues  If the
actual revenues are 90% or less of the forecasted revenues during a two
year period, then the parties are responsible for modifying the CIP
projects planned for the two year time period to fit within the individual
CIP budgets identified in Attachment C-1. Alternatively, if the parties
agree, the parking tax may be raised so that the amount of the parking
tax   collected   by   the   City   meets   the   sum   of   forecasted
revenue. However, if the parties agree to raise the parking tax to
generate sufficient funds to meet the amount of forecasted revenue, the
new parking tax rate shall not generate revenue to exceed the JTS
project funding requirements shown in Attachment C-1. 
b.   Actual Revenues are   greater than 90% but less than 100% of the
Forecasted Revenues - If the actual revenues are greater than 90% but
less than 100% of the forecasted revenue for the two-year period, then
the parties will be responsible for modifying their respective projects to
fit within the individual CIP budgets identified in Attachment C-1.
Under these circumstances, the parties agree that the parking tax should
not be raised. 2008 shall be the first year that this corrective action can
be implemented. 
c.   The parties may agree to use a combination of options a and b. 
d.  Adding or Deleting Projects from the CIP project list: Either party may
request that a project be added or deleted from the list of projects in the
CIP. The party seeking to add or delete a project shall do so in writing
and shall send the request to the other party. If the other party raises
concerns about the addition or deletion of the project to the CIP list
with respect to scope, funding or schedule, the party requesting the
addition or deletion shall address these concerns. If the party seeking
addition or deletion of a project addresses these concerns adequately,
then the parties shall express their agreement through a letter that
describes those conditions and then add or delete the project from the
CIP list through an amendment to this agreement. If the parties cannot
agree about whether or not a project should be added to or deleted from

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the list, then the parties shall engage in Dispute Resolution provisions
of this agreement. 
C.  EXHIBIT D, MATERIAL HAULING PROVISIONS FOR PORT HAUL
PROJECT, of ILA-2 shall terminate on February 16, 2016. The Port agrees to comply
with current City Code requirements for material haul routes and permitting after
February 16, 2016. 
This Amendment No. 4 shall be effective on the date of the last signature below. 

Dated:                               PORT OF SEATTLE, a Washington 
municipal corporation 

By: 
Mark Reis, Director, Aviation Division 
Approved as to form: 

Traci Goodwin, Senior Port Counsel 

Dated:                               CITY OF SEATAC, a Washington 
municipal corporation 

By: 
Todd Cutts, City Manager 

Approved as to form: 

Mark S. Johnsen, Senior Assistant City Attorney 




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