New York’s Department of Environmental Protection’s Right-of-Way Green Infrastructure (ROWGI) initiative is one of the largest programs in the world. This presentation will discuss how, in collaboration with the Department of Design and Construction (DDC), the DEP has developed standard specifications for construction of ROW GI throughout NYC. The NYC DEP GI Standard Designs contain six asset types with unique features and additional elements to be used when needed. A few of the specifications this presentation will discuss are Clean Open Graded Stone, Concrete Elements, Stormwater Inlet for GI Assets, High Density Polyethylene (HDPE) Pipe, and HDPE Stormwater Chambers. Throughout DEP’s experience of constructing more than 10,000 ROW GI assets, updates to specifications such as Plant Establishment and Steel Tree Guards, were essential to improving the lifetime and durability of the green infrastructure. In summary, this presentation will discuss the standard specifications for the right-of-way green infrastructure program at NYC DEP and how those specifications have changed over time to successfully implement the largest GI program in the country.