Item No. 6b_reso 
Meeting Date: December 12, 2017 

RESOLUTION NO. 3741 
A RESOLUTION  of the Port Commission of the Port of Seattle 
authorizing the Executive Director to execute an 
Interlocal Agreement with the City of SeaTac to 
establish a mutual and cooperative system for 
exercising their respective jurisdictional authority
regarding land use, surface water management, 
interagency cooperation, economic development, and
public safety. 
WHEREAS, as municipal corporations, the Port of Seattle and the City of SeaTac
each have statutory authority to address common subjects such as comprehensive
planning, land use, transportation, surface water management, critical areas, public safety, 
and other matters, and both parties are governed by the State Environmental Policy Act
(SEPA) and have lead agency authority to the extent provided in the SEPA rules, and 
WHEREAS, the Port owns and operates Seattle-Tacoma International Airport
(Sea-Tac Airport), which is located primarily within the SeaTac City limits, and 
WHEREAS, the Port and the City entered into previous Interlocal Agreements
dated September 4, 1997 (ILA 1), along with an Amendment (Amendment 1) dated
December 14, 1999, an Amendment (Amendment 2) dated December 15, 1999, an
Amendment (Amendment 3) dated December 5, 2000, an Amendment (Amendment 4)
dated December 26, 2001, and an Interlocal Agreement (ILA II) dated February 16, 2006,
and an Amendment dated December 22, 2015, and 
WHEREAS, the December 22, 2015 Amendment extended of portions of ILA 2
that expires on February 16, 2018, and 
WHEREAS, pursuant to the Interlocal Cooperation Act, Chap. 39.34 RCW, both
parties desire to enter into a new ILA in order to jointly establish a mutual and cooperative

system for exercising their respective jurisdictional authority to avoid disputes or potential
claims and to obtain fair and equitable resolution of any potential disputes or claims. 
NOW, THEREFORE, BE IT RESOLVED by the Port Commission of the Port
of Seattle that: 
Section 1.   The Executive Director is hereby authorized to execute the 2018
Interlocal Agreement (ILA 3) in substantially the form attached hereto as Exhibit A and
incorporated herein by this reference. 
Section 2.   The Executive Director, or his designee, is authorized to take all
necessary actions to fulfill the terms of ILA 3. 
Section 3.    This ILA 3 will become effective on February 17, 2018. 
Section 4.    A copy of the final executed ILA 3 shall be attached to this
Resolution as Exhibit B and incorporated herein by this reference. 
ADOPTED by the Port Commission of the Port of Seattle at a regular meeting
thereof, held this ___ day of _______, 2017, and duly authenticated in open session by the
signatures of the Commissioners voting in favor thereof and the seal of the Commission. 

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Port Commissioners

EXHIBIT "A" to RESOLUTION NO. 3741 
2018 Interlocal Agreement (ILA 3)