Attack Line
The 3 m line (about 10 ft in feet-friendly gyms) that splits each half of the floor into front and back zone on an indoor FIVB court. Front-row players can attack from anywhere. As a back-row player you only care about the line when you want to take a full swing or play the ball as an attack hit above the top of the net, because you have to leave the floor from behind that line. Same line shows up in NCAA and most high school federation books under the same 3 m measurement.
Example
The opposite is back row, starts her approach a full arm behind the attack line, jumps while still in the back zone, and rips. She sticks the landing in the front row. Legal, because the takeoff was behind the line.
Frequently Asked Questions
Can you step on the attack line in volleyball?
You can stand on it or run across it. The fault is jumping from the wrong side to attack above the net as a back-row player. You can set, pass, and roll a standing shot from the front zone all day; the jump location is the filter.