14 CFR · Part 29
14 CFR § 29.55
Takeoff decision point (TDP): Category A.
(a)
The TDP is the first point from which a continued takeoff capability is assured under § 29.59 and is the last point in the takeoff path from which a rejected takeoff is assured within the distance determined under § 29.62.
(b)
The TDP must be established in relation to the takeoff path using no more than two parameters; e.g., airspeed and height, to designate the TDP.
(c)
Determination of the TDP must include the pilot recognition time interval following failure of the critical engine.
Regulations Referenced
Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.
Primary Source