Free engine retrofit assessments for qualifying older construction equipment A new Clean Air Construction service is available to COBID certified firms, equity contractors, and small businesses. Type Code: 01 - Construction ITB Ship-to: Please See Solicitation Documents 1120 SW 5th Ave. Portland, OR 97204 US Email: cityinfo@portlandoregon.gov Phone: (503)823-4000 NIGP CODE:912-99 Purchase Method: Kelly