A project incorporates steel beams as an interior architectural feature, but no recycled content information is available. When calculating the recycled content of the beams, which default content amount should be used?15%

What must a project team inventory to determine if a project has enough reused surfaces to document Materials and Resources Credit, Interior Life-Cycle Impact Reduction, Option 1. Interior Reuse? 

A project's installed water fixtures do not exceed WaterSense maximum levels. Which compliance path should the LEED AP select under Water Efficiency Prerequisite, Indoor Water Use Reduction, and what type of documentation is required to demonstrate compliance with this path? 

In addition to the basic requirements for Energy and Atmosphere, Fundamental Commissioning and Verification, which is required to achieve Energy and Atmosphere, Enhanced Commissioning, Option 1?

Best practices recommend that the LEED AP confirm that minimum program requirements have been met