{"abstract":"This notice announces the availability of and requests comments on a proposed Advisory Circular (AC) 20-DO-254, Design Assurance Guidance for Airborne Electronic Hardware. This proposed AC provides guidance for manufacturers of aircraft products appliances incorporating custom micro-coded components in the design of their aircraft systems and equipment. In it, we recommend how you get design and airworthiness approval for your equipment.","action":"Notice of availability and request for public comment.","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 Aviation Administration","name":"Federal Aviation Administration","id":159,"url":"https://www.federalregister.gov/agencies/federal-aviation-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/159","parent_id":492,"slug":"federal-aviation-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2004/07/06/04-15251.html","cfr_references":[],"citation":"69 FR 40710","comment_url":null,"comments_close_on":"2004-08-02","correction_of":null,"corrections":[],"dates":"Comments must be received on or before August 2, 2004.","disposition_notes":null,"docket_ids":[],"dockets":[],"document_number":"04-15251","effective_on":null,"end_page":40711,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2004/07/06/04-15251.xml","html_url":"https://www.federalregister.gov/documents/2004/07/06/04-15251/proposed-advisory-circular-ac-20-do-254-rtca-inc-document-no-rtcado-254-design-assurance-guidance","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/04-15251?publication_date=2004-07-06","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2004-07-06/04-15251/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":94,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2004-07-06/pdf/04-15251.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2004-07-06","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2004/07/06/04-15251.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-11-12T12:42:05Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":40710,"subtype":null,"title":"Proposed Advisory Circular (AC) 20-DO-254, RTCA, INC., Document No. (RTCA/DO)-254, Design Assurance Guidance For Airborne Electronic Hardware.","toc_doc":"Design assurance guidance for airborne electronic hardware","toc_subject":"Advisory circulars; availability, etc.:","topics":[],"type":"Notice","volume":69}