Civil Plan Check Engineer SAFEbuiltCivil Plan Check EngineerPomona, CaliforniaFounded in 2002, Interwest provides City Engineering, Building Code Compliance, City Planning, Traffic Engineering, Capital Project Delivery and Real Estate Acquisition throughout CA and NV. Our employees are our greatest asset, with exceptionally certified individuals in all departments, including Planning & Zoning, Code Enforcement, Fire Prevention, and Engineering, as well as full-service and supplemental Building Department services.