{"abstract":"This document provides the public with notice that, on August 6, 2026, the Belt Railway Company of Chicago (BRC) submitted a request for amendment (RFA) to its FRA-certified positive train control safety plan (PTCSP) to perform necessary maintenance and optimization of its operational technology network during September and October 2026. To complete this maintenance, BRC is requesting four planned windows during which work will be performed on the network infrastructure, and during which unplanned positive train control (PTC) system outages may occur. As this RFA involves a request for FRA's approval of proposed material modifications to an FRA-certified PTC system, FRA is publishing this notice and inviting public comment on BRC's RFA to its PTCSP.","action":"Notice of availability and request for comments.","agencies":[{"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":"Federal Railroad Administration","name":"Federal Railroad Administration","id":185,"url":"https://www.federalregister.gov/agencies/federal-railroad-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/185","parent_id":492,"slug":"federal-railroad-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/08/12/2026-16430.html","cfr_references":[],"citation":"91 FR 52109","comment_url":null,"comments_close_on":"2026-09-01","correction_of":null,"corrections":[],"dates":"FRA will consider comments received by September 1, 2026. FRA may consider comments received after that date to the extent practicable and without delaying implementation of valuable or necessary modifications to a PTC system.","disposition_notes":null,"docket_ids":["Docket Number FRA-2010-0062"],"dockets":[{"supporting_documents":[],"agency_name":"FRA","documents":[{"comment_count":1,"comment_start_date":"2026-08-12","updated_at":"2026-09-02T01:56:43.570-04:00","comment_url":"https://www.regulations.gov/commenton/FRA-2010-0062-0118","allow_late_comments":false,"id":"FRA-2010-0062-0118","comment_end_date":"2026-09-02","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FRA-2010-0062","title":"Belt Railway Company of Chicago (BRC) - Positive Train Control Plans"}],"document_number":"2026-16430","effective_on":null,"end_page":52110,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/08/12/2026-16430.xml","html_url":"https://www.federalregister.gov/documents/2026/08/12/2026-16430/belt-railway-company-of-chicagos-request-to-amend-its-positive-train-control-safety-plan","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-16430?publication_date=2026-08-12","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-08-12/2026-16430/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":68,"last_updated":"2026-10-24 18:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-08-12/pdf/2026-16430.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-16430.pdf?1786452316","publication_date":"2026-08-12","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/08/12/2026-16430.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[],"comments_count":1,"agency_id":"FRA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FRA-2010-0062","supporting_documents_count":0,"docket_id":"FRA-2010-0062","document_id":"FRA-2010-0062-0118","regulation_id_number":null,"title":"Belt Railway Company of Chicago (BRC) - Positive Train Control Plans","checked_regulationsdotgov_at":"2026-09-03T08:55:03Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":52109,"subtype":null,"title":"Belt Railway Company of Chicago's Request To Amend Its Positive Train Control Safety Plan","toc_doc":"Belt Railway Company of Chicago's Request to Amend its Positive Train Control Safety Plan","toc_subject":null,"topics":[],"type":"Notice","volume":91}