Why didn't you include the entire quotes rather than cherry-picking them? Afraid of something? Let's see how the entire passages change things. I'll highlight the portions you selectively lifted:
The agency has previously said that the nature of rest is the same, regardless of the operation or the subpart under which a flight assignment is performed. Rest must satisfy three conditions in order to qualify as a rest period: It must be 1) a continuous period of time, 2) determined prospectively, and 3) during which the crewmember is free from all restraint by the certificate holder, including freedom from present responsibility from work should the occasion arise. See Oct 29. 2002 Letter to James W. Johnson, from Donald P. Byrne, Assistant Chief Counsel, Regulations Division [No. 2003-6] (copy enclosed); August 5, 2004 Letter to Don Treichler, from James W. Whitlow, Deputy Chief Counsel (copy enclosed); and Dec. 9, 1999 Letter to James R. Knight, from Donald P. Byrne, Assistant Chief Counsel [2001-1] (copy enclosed).
Under section 121.467(a) of the flight attendant duty period limitations and rest requirements regulations, rest period is defined as "the period free of all restraint or duty for a certificate holder conducting domestic, flag, or supplemental operations and free of all responsibility for work or duty should the occasion arise." The agency has not previously addressed, via a letter of interpretation, whether this definition of rest is similar to the definition of rest in the cited interpretations.
As written, the definition of rest period in section 121.467(a) appears to focus on criterion number 3 of the nature of rest (i.e., a period "during which a crewmember is free from all restraint by the certificate holder, including freedom from present responsibility for work should the occasion arise"). The regulatory history of section 121.467 provides insight into the FAA drafters' intent about the nature of the section 121.467(a) rest period. The Preamble to the final rule notes that "this final rule requires that a flight attendant `be given' a scheduled rest period. This provision makes the operator responsible for ensuring that a flight attendant is scheduled for and receives the scheduled rest period. The FAA recognizes that how the flight attendant utilizes this rest period cannot be regulated. Requiring operators to schedule rest periods ensures that flight attendants know in advance when rest periods will occur and that they will be of a specified duration."
The definition you quoted from Part 121, according to the Chief Counsel, "appears to focus on criterion number 3 of the nature of rest". So, the interp goes on to state:
We believe that the cited regulatory history supports the view that the FAA drafters' intended that a flight attendant's rest period satisfy not only criterion number 3 of the nature of rest (a period "during which the crewmember is free from all restraint by the certificate holder, including freedom from present responsibility for work should the occasion arise), but also criteria numbers 1 and 2 ("a continuous period of time" that is "determined prospectively"). Thus, we conclude that the Agency's definition of rest stated, in various legal interpretations, also applies to flight attendants.
dtuuri