Reader tdracer is correct. The certification performance requirement (current version) is:
Sec. 25.119
Landing climb: All-engines-operating.
In the landing configuration, the steady gradient of climb may not be less than 3.2 percent, with the engines at the power or thrust that is available 8 seconds after initiation of movement of the power or thrust controls from the minimum flight idle to the go-around power or thrust setting--