USCIS Response to the Citizenship and Immigration Services Ombudsman's (CISOMB) 2017 Annual Report to Congress [open pdf - 3MB]
From the Introduction: "USCIS [U.S. Citizenship and Immigration Services] appreciates the CISOMB's [Office of the Citizenship and Immigration Services Ombudsman] review of our agency's operations and welcomes the opportunity to respond to concerns and recommendations found in the Annual Report. This response provides updates to the USCIS programs mentioned in the Annual Report and addresses several CISOMB's recommendations for improving the USCIS processes. Where appropriate, the response also raises several of USCIS' accomplishments in improving procedures and applicant service from Fiscal Year 2016 (FY 2016). The section headings in the response correspond to the section headings in the 2017 annual report."
U.S. Citizenship and Immigration Services: http://www.uscis.gov/