2018 Interlocal Agreement 
Port of Seattle and the City of SeaTac 
Lance Lyttle, Managing Director  
Aviation Division 
Clare Gallagher, Public Affairs 
November 14, 2017 


1

Overview 
Port and City of SeaTac have used Interlocal 
Agreements since 1997 
Broad agreement to address potential operational
and authority issues 
Current ILA expires mid-February 2018 
New ILA supports City and Airport priorities 
Interlocal Agreement improves efficiency, operational costs and avoids litigation 
2

Key Elements of New Agreement 
Support for public safety and traffic enforcement 
Unique land use and development regulations to meet the needs of the
Port and the City 
Provision of traffic impact fees, permit fees and stormwater fees for
Port-owned property 
Support for City's neighborhood parking program 
Quality assurance for Port development permits integrated into the City
system, and 
A Port process to further support City business license compliance 
Intended to be a comprehensive and cohesive package of elements for mutual value 
3

Airport Activity Area 
Defines Permitting Areas
for the Port and the City 
Accounts for existing
conditions 
Includes future Master Plan
assumptions 

New Element: "AAA" Boundary Map for Delineation 
4

Schedule 
November 9      Documents published, website materials posted,
open house ads and press release 
November 14      Briefings to Port Commission and SeaTac City
Council 
November 16      Public open house at SeaTac Community Center 
November 20      City staff briefing to City of SeaTac Airport
Committee 
November 28      Port Commission and City Council consider
resolutions to adopt new Agreement 
December 12      Second reading and adoption 
Public review, Commission and Council consideration by year-end 
5