Porcari's signature achievements at USDOT included implementation of President Obama's Executive Order 13604, an Administration effort to expedite project permitting, while delivering quality environmental outcomes. Under efforts like this, major infrastructure projects such as replacement of the Tappan Zee Bridge, realized significant permit process savings, reducing permit time from several years to just over 12 months. As a result, the project broke ground in December 2013. Porcari also led the department's work on major projects, including the $1.7 billion transformation of the James Farley Post Office adjacent to Penn Station in midtown Manhattan to enhance transportation and develop mixed-use real estate and the construction of the planned $3.5 billion New International Trade Crossing (NITC) bridge to connect Detroit and Windsor, Ontario, a major trade corridor that carries almost a quarter of the land trade between the United States and Canada. Porcari left behind improved relationships with cities, and augmented the department calculus to identify and deliver better projects, based on merit.