{"abstract":"The Coast Guard and the Research and Innovative Technology Administration are analyzing the current and future user needs and requirements of the Nationwide Differential Global Positioning System (NDGPS). The NDGPS was designed to broadcast signals to improve the accuracy and integrity of the Global Positioning System (GPS) derived positions for surface transportation, as well as other civil, commercial, scientific, and homeland security applications. This analysis will be used to support future NDGPS investment decisions by the Department of Homeland Security and the Department of Transportation beyond fiscal year 2016. This notice seeks comments from Federal, state, and local agencies, as well as other interested members of the public regarding current and future usage of the NDGPS, the need to retain the NDGPS, the impact if NDGPS signals were not available, alternatives to the NDGPS, and alternative uses for the existing NDGPS infrastructure.","action":"Notice; request for public comments.","agencies":[{"raw_name":"DEPARTMENT OF HOMELAND SECURITY","name":"Homeland Security Department","id":227,"url":"https://www.federalregister.gov/agencies/homeland-security-department","json_url":"https://www.federalregister.gov/api/v1/agencies/227","parent_id":null,"slug":"homeland-security-department"},{"raw_name":"Coast Guard","name":"Coast Guard","id":53,"url":"https://www.federalregister.gov/agencies/coast-guard","json_url":"https://www.federalregister.gov/api/v1/agencies/53","parent_id":227,"slug":"coast-guard"},{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"Research and Innovative Technology Administration","name":"Research and Innovative Technology Administration","id":450,"url":"https://www.federalregister.gov/agencies/research-and-innovative-technology-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/450","parent_id":492,"slug":"research-and-innovative-technology-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2013/04/16/2013-08844.html","cfr_references":[],"citation":"78 FR 22554","comment_url":null,"comments_close_on":"2013-07-15","correction_of":null,"corrections":[],"dates":"Comments and related material must reach the Docket Management Facility on or before July 15, 2013.","disposition_notes":null,"docket_ids":["USCG-2013-0054","RITA-2013-0001"],"dockets":[],"document_number":"2013-08844","effective_on":null,"end_page":22556,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2013/04/16/2013-08844.xml","html_url":"https://www.federalregister.gov/documents/2013/04/16/2013-08844/nationwide-differential-global-positioning-system-ndgps","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2013-08844?publication_date=2013-04-16","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2013-04-16/2013-08844/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":793,"last_updated":"2026-08-25 10:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2013-04-16/pdf/2013-08844.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2013-08844.pdf?1366030048","publication_date":"2013-04-16","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2013/04/16/2013-08844.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Richard James Hartnett - See Attachments","document_id":"RITA-2013-0001-0004"}],"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=RITA-2013-0001","supporting_documents_count":1,"docket_id":"RITA-2013-0001","regulation_id_number":null,"title":"Nationwide Differential Global Positioning System - Notice and Request for Comments","checked_regulationsdotgov_at":"2013-05-26T05:01:07Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":22554,"subtype":null,"title":"Nationwide Differential Global Positioning System (NDGPS)","toc_doc":"Nationwide Differential Global Positioning System","toc_subject":null,"topics":[],"type":"Notice","volume":78}