[Code of Federal Regulations]
[Title 14, Volume 4]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR417.218]

[Page 572]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
     CHAPTER III--COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION 
              ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 417_LAUNCH SAFETY--Table of Contents
 
                    Subpart C_Flight Safety Analysis
 
Sec. 417.218  Hold-and-resume gate analysis.

    (a) For a launch that involves overflight or near overflight of a 
populated or otherwise protected area prior to the planned safe flight 
state calculated as required by Sec. 417.219, the flight safety 
analysis must construct a hold-and-resume gate for each populated or 
otherwise protected area. After a vehicle's tracking icon crosses a 
hold-and-resume gate, flight termination must occur as required by 
sections 417.113(d)(6).
    (b) The hold-and-resume gate analysis must account for:
    (1) Overflight of a wholly contained populated or otherwise 
protected area. A hold-and-resume gate must be a closed, continuous 
contour that encompasses any populated or otherwise protected area 
located wholly within the impact limit lines. The hold-and-resume gate 
must encompass a populated or otherwise protected area such that flight 
termination or breakup of the launch vehicle while the tracking icon is 
outside the gate would not cause hazardous debris or overpressure to 
endanger the populated or otherwise protected area.
    (2) Overflight of an uncontained populated or otherwise protected 
area. A hold-and-resume gate must be a closed, continuous contour that 
encompasses any area in which flight termination is allowed to occur. 
The hold-and-resume gate must encompass all hazard areas such that 
flight termination or breakup of the launch vehicle while the vehicle's 
tracking icon is inside the gate would not cause hazardous debris or 
critical overpressure to endanger any populated or otherwise protected 
area.