Item No.:__7b__Attach_2________ 
ATTACHMENT 2                              Date of Meeting: December 4, 2012 
Port of Seattle Clean Truck Program Options
80% of truck meets goal by end of 2015; 
No Change to Truck Goals                                                                Accelerate Long-Term Truck Goal 
100% met goal by end of 2017 
OPTION A                 OPTION B               OPTION C                 OPTION D               OPTION E 
Voluntary soft target/ no action in        Require all trucks to meet 2007       Require all trucks to meet 2007          All trucks meet MY 2007 emissions    All trucks meet MY 2007 emissions
2015 (80% is an interim goal on way to     emission standards by 12/31/15 with   emission standards by 12/31/15 with     standards by 12/31/16.            standards by 12/31/15. 
100% compliance in 2017)             exceptions based on financial need.    2-year exceptions for based on model
year of truck:                        No exceptions.                    No exceptions. 
Trucks older than 2007 engine year not     By 12/31/2015: Truck owners with
turned away at terminal gate.            demonstrated financial need get 2 year-   By 12/31/2015: Trucks that have MY
grace period. (Demonstration of need   2003 engines or newer get 2 year grace
may include criteria such as purchase    period. 
date of truck, such as the 370 trucks
replaced as part of regional ScRAPS
programs and others purchased in
same time period.)
By 12/31/2017: Exceptions expire; all     By 12/31/2017: Exceptions expire; all   By 12/31/2017: Exceptions expire; all
trucks must meet 2007 MY emissions      trucks must meet 2007 MY emissions   trucks must meet 2007 MY emissions
standards.                         standards.                      standards. 

With normal fleet turnover plus          This will result in approximately 80% of  This will result in approximately 80% of
incentives, would expect 25% - 35% of     trucks meeting 2007 emission        trucks meeting 2007 emission standards
fleet to have MY 2007 or newer engines    standards by end of 2015.           by end of 2015. 
by end of 2015. 

Estimated air emissions for year 2016:     Estimated air emission for year 2016:   Estimated air emissions for year 2016:     Estimated air emissions for year 2016:  Estimated air emissions for year 2016:
Approximately 60% reduction from       Approximately 80% reduction from    Approximately 90% reduction from       Approximately 80-90% reduction from  Approximately 98% reduction from 2005
2005 baseline.*                     2005 baseline.*                  2005 baseline.*                     2005 baseline; and 98% reduction in    baseline.* 
2017.* 
* These are preliminary estimates based on EPA's DrayFLEET tool. These estimates do not reflect projected growth in cargo movement or complex air modeling inputs. However, they provide a sense of scale in reviewing
options. For reference, the 2011 Puget Sound Maritime Air Emissions Inventory calculated that diesel particulate matter (DPM) from Port of Seattle truck activity in 2005 was 54 tons, and in 2011 was 25 tons (a 53%
reduction from the 2005 baseline.)