14 CFR § 19-1 - Sec. 19-1 Applicability.

---
identifier: "/us/cfr/t14/s19-1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 19-1 - Sec. 19-1   Applicability."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "19-1"
section_name: "Sec. 19-1   Applicability."
chapter_name: "OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS)"
subchapter_number: "A"
subchapter_name: "ECONOMIC REGULATIONS"
part_number: "241"
part_name: "UNIFORM SYSTEM OF ACCOUNTS AND REPORTS FOR LARGE CERTIFICATED AIR CARRIERS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 329, 41101, 41708, and 41709."
regulatory_source: "ER-755, 37 FR 19726, Sept. 21, 1972, unless otherwise noted."
cfr_part: "241"
---


# 19-1 Sec. 19-1   Applicability.

(a) *United States air carrier.* Each large certificated U.S. air carrier shall file with the Department, on a monthly basis, Form 41 Schedule T-100 “U.S. Air Carrier Traffic and Capacity Data By Nonstop Segment and On-flight Market,” and summary data as prescribed in this section and in sections 22 and 25 of this part.

(b) *Foreign (non-U.S.) air carrier:* Each foreign air carrier as required by part 217 of this chapter shall file Form 41 Schedule T-100(f) “Foreign Air Carrier Traffic Data by Nonstop Segment and On-flight Market.” The “Instructions to Foreign Air Carriers for Reporting Traffic Data on Form 41 Schedule T-100(f),” (Instructions-Foreign Air Carriers) are included in the Appendix to § 217.10 of this chapter.

(c) Reports required by this section shall be submitted to the Bureau of Transportation Statistics in a format specified in accounting and reporting directives issued by the Bureau of Transportation Statistics' Director of Airline Information.

(d) On-flight market and nonstop segment detail data by carrier shall be made public only as provided in section 19-6.

[53 FR 46305, Nov. 16, 1988; 53 FR 52404, Dec. 28, 1988, as amended at 60 FR 66723, Dec. 26, 1995; 67 FR 49223, July 30, 2002; 75 FR 41583, July 16, 2010]