City of Ontario Building and Safety Department
303 East “B” St
Ontario, CA 91764
Phone: (909) 395-2023
Email: https://www.ontarioca.gov/contact-us
Website: https://www.ontarioca.gov/Building
City of Ontario Building and Safety Department
303 East “B” St
Ontario, CA 91764
Phone: (909) 395-2023
Email: https://www.ontarioca.gov/contact-us
Website: https://www.ontarioca.gov/Building