PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA                      Item No.         6a 
ACTION ITEM 
Date of Meeting     December 22, 2015 
DATE:     December 18, 2015 
TO:        Ted Fick, Chief Executive Officer 
FROM:    Mark Reis, Managing Director, Aviation Division 
Linda Stewart, Director, Aviation Community Partnerships 
SUBJECT:  Amendment 4 to the 2005 Port/City of SeaTac Interlocal Agreement (ILA-2) 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to execute Amendment 4 to
the 2005 Port/City of SeaTac Interlocal Agreement (ILA-2), to extend the term of the agreement
for two more years from February 16, 2016, through February 16, 2018.
SYNOPSIS 
The current term of ILA-2 is scheduled to end on February 16, 2016.  The main objective of
Amendment 4 to ILA-2 is to extend the term of the agreement for two more years to February
16, 2018.  This extension will allow for airport operational land use needs to be clarified in the 
Sustainable Airport Master Plan before the Port and the City of SeaTac consider a more
extensive revision of the agreement.  The City of SeaTac reviewed Amendment 4 to ILA-2 
during a special study session on December 17, 2015, and is scheduled to approve proposed
Amendment 4 to ILA-2 during a council meeting on December 22, 2015. 
BACKGROUND 
On February 16, 2006, the Port and the City entered into an Interlocal Agreement (ILA-2) that
replaced the previous ILA (ILA-1) signed in 1997. The purpose of ILA-2 is to jointly establish a
mutual and cooperative system for the Port and the City to exercise a variety of jurisdictional
authorities to avoid disputes or potential claims and to obtain fair and equitable resolution of any
potential disputes or claims.
ILA-2 is scheduled to expire on February 16, 2016. The Port and City agree that extending the
term of ILA-2 for two more years will allow them to consider revisions to ILA-2 after
completion of the Sustainable Airport Master Plan (SAMP).  Waiting until after completion of
SAMP allow the parties to consider revisions to ILA-2 in a more fully informed manner about
future airport operational needs. 


Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 18, 2015 
Page 2 of 2 
In addition to extending the term of ILA-2 to February 16, 2018, Amendment 4 will amend
Exhibit C of ILA-2 and will repeal Exhibit D of ILA-2 as summarized below: 

EXHIBIT C, INTERAGENCY COOPERATION & DEVELOPMENT COMMITMENTS 
Eliminates the City's responsibility to set aside 22% of parking tax revenues for the
proposed South Access project to the airport after February 16, 2016. 
Establishes agreement that the City will reconcile the amount of parking tax remaining
after February 16, 2016, and will notify the Port by July 1, 2016 as to the remaining
amount of parking tax revenues.  It is anticipated that the total remaining parking tax
funds available after February 16, 2016 will be approximately $3.0 million. The Port and
City agree these remaining parking tax funds will be spent on a transportation project or
projects that will mitigate impacts on City traffic and/or provides airport access. The Port
and City will work together to identify an appropriate project(s) for the expenditure of
these remaining parking tax funds. 

EXHIBIT D, MATERIAL HAULING PROVISIONS FOR PORT HAUL PROJECT 
Repeals special material haul requirements. 
Establishes agreement that the Port will comply with current City Code requirements for
material haul routes and permitting after February 16, 2016. 
ATTACHMENTS TO THIS REQUEST 
Redline Amendment No. 4 to ILA-2 
Final Amendment No. 4 to ILA-2 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
October 22, 2013  Authorized Amendment 3 to update the list of parking tax eligible
projects 
December 28, 2007  Authorized Amendment 2 to amend Section 1.1 of Exhibit D,
Material Hauling Provisions for Port Haul Projects 
October 22, 2007  Authorized Amendment 1 to section 5 and Attachment C-1 of Exhibit
C, Interagency Cooperation and Development Commitments 
November 22, 2005  Adopted Resolution No. 3552 enabling the Port to enter into the
2005 ILA with the City of SeaTac