{"abstract":"This action introduces new airworthiness standards to evaluate the performance and handling characteristics of transport category airplanes in icing conditions. This action will improve the level of safety for new airplane designs when operating in icing conditions, and harmonizes the U.S. and European airworthiness standards for flight in icing conditions.","action":"Final rule.","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/2007/08/08/E7-14937.html","cfr_references":[{"chapter":null,"citation_url":null,"part":25,"title":14}],"citation":"72 FR 44656","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule becomes effective October 9, 2007.","disposition_notes":null,"docket_ids":["Docket No. FAA-2005-22840","Amendment No. 25-121"],"dockets":[],"document_number":"E7-14937","effective_on":"2007-10-09","end_page":44669,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2007/08/08/E7-14937.xml","html_url":"https://www.federalregister.gov/documents/2007/08/08/E7-14937/airplane-performance-and-handling-qualities-in-icing-conditions","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/E7-14937?publication_date=2007-08-08","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2007-08-08/E7-14937/mods.xml","not_received_for_publication":null,"page_length":14,"page_views":{"count":864,"last_updated":"2026-09-22 00:15:09 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2007-08-08/pdf/E7-14937.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2007-08-08","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2007/08/08/E7-14937.txt","regulation_id_number_info":{"2120-AI14":{"issue":"200404","html_url":"https://www.federalregister.gov/regulations/2120-AI14/airplane-performance-and-handling-qualities-in-icing-conditions","title":"Airplane Performance and Handling Qualities in Icing Conditions","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=200404&RIN=2120-AI14&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2120-AI14"],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-11-12T22:19:22Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":44656,"subtype":null,"title":"Airplane Performance and Handling Qualities in Icing Conditions","toc_doc":"Airplane performance and handling qualities in icing conditions","toc_subject":"Airworthiness standards:","topics":["Aircraft","Aviation safety","Reporting and recordkeeping requirements"],"type":"Rule","volume":72}