8900.1 CHG 511



Indicates new/changed information.

Section 5  Clarifying Policy Regarding the Fight Time, Duty, and Rest Requirements of 14 CFR Parts 117, 121, and 135

3-4669    BACKGROUND. In recent years, the Federal Aviation Administration (FAA) has received a number of requests for interpretation or clarification regarding the flight time, duty, and rest requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 117, 121, and 135. The requests are either handled by the Office of the Chief Counsel (AGC) in the form of a legal interpretation or, in some cases, AGC forwards the request to the Flight Standards Service (AFS) to address as a matter of policy. Legal interpretations are typically available to the public via the internet. Until recently, however, responses issued by AFS as a means to clarify or establish policy were provided only to the inquirer and were not made a matter of public record. AFS has since determined that it would be appropriate to publish its responses for the benefit of the agency and the public.

NOTE:  Legal interpretations issued by AGC are available at http://www.faa.gov/about/office_org/headquarters_offices/agc/pol_adjudication/agc200/Interpretations/.

3-4670    AFS RESPONSES CONSTITUTE NATIONAL POLICY. AFS issues responses regarding flight time, duty, and rest requirements for pilots, aircraft dispatchers, operational control specialists, mechanics, and flight attendants, in accordance with the requirements set forth in parts 117, 121, and 135, as applicable. When AFS determines it is appropriate, these responses will be published in the Flight Standards Information Management System (FSIMS). Once published, these responses constitute national policy.

3-4671    FSIMS LINK TO AFS RESPONSES. The link that connects the reader to the repository of AFS responses regarding flight time, duty, and rest requirements is titled “Clarifying Policy Regarding Flight Time, Duty, and Rest,” and can be accessed via the “Publications” tab in FSIMS. All responses are grouped by regulatory part (117, 121, or 135). The responses are available at

RESERVED. Paragraphs 3-4672 through 3-4748.