{"abstract":"This document responds to fourteen petitions for reconsideration that were filed in response to the regulations for unlicensed ultra-wideband (\"UWB\") operation. In general, this document does not make any significant changes to the existing UWB parameters.","action":"Final rule.","agencies":[{"raw_name":"FEDERAL COMMUNICATIONS COMMISSION","name":"Federal Communications Commission","id":161,"url":"https://www.federalregister.gov/agencies/federal-communications-commission","json_url":"https://www.federalregister.gov/api/v1/agencies/161","parent_id":null,"slug":"federal-communications-commission"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2003/04/22/03-9879.html","cfr_references":[{"chapter":null,"citation_url":null,"part":15,"title":47}],"citation":"68 FR 19746","comment_url":null,"comments_close_on":"2003-06-23","correction_of":null,"corrections":[],"dates":"Effective May 22, 2003 except Sec. 15.525 which contains information collection requirements that have not been approved by OMB. The FCC will publish a document in the Federal Register announcing the effective date for that section. Written comments by the public on the new and/or modified information collection(s) are due June 23, 2003.","disposition_notes":null,"docket_ids":["ET Docket No. 98-153","FCC 03-33"],"dockets":[],"document_number":"03-9879","effective_on":"2003-05-22","end_page":19752,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2003/04/22/03-9879.xml","html_url":"https://www.federalregister.gov/documents/2003/04/22/03-9879/ultra-wideband-transmission-systems","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/03-9879?publication_date=2003-04-22","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2003-04-22/03-9879/mods.xml","not_received_for_publication":null,"page_length":7,"page_views":{"count":779,"last_updated":"2026-07-28 10:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2003-04-22/pdf/03-9879.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2003-04-22","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2003/04/22/03-9879.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":19746,"subtype":null,"title":"Ultra-Wideband Transmission Systems","toc_doc":"Ultra-wideband transmission systems; unlicensed operation","toc_subject":"Radio frequency devices:","topics":["Communications equipment","Radio","Reporting and recordkeeping requirements","Security measures"],"type":"Rule","volume":68}