The RFP is intended to solicit proposals for their inclusion on a pre-approved list of vendors that, once under contract, will be able to respond to various project scopes of work. The services will incorporate elements of one or more of the project categories listed below, which include a variety of urban forestry practices such as tree planting, tree pruning, tree removal, inventory/data analysis, and arborist services. Services will be scheduled through an “on-call” process where PRCR staff will identify specific projects, develop a detailed scope of work for each project, and select the preapproved vendor(s) for the projects most suited to the skills, experience, capabilities, and/or expertise of the vendor(s). As specific projects are developed by PRCR, vendors will be asked to provide quotes based on project specifics and labor/equipment needs.