Laws of the Game
The field of play must be rectangular and marked with continuous lines which must not be exceeding the height of the pitch. These lines belong to the areas of which they are boundaries.
Only the lines indicated in Law 1 are to be marked on the field of play.
The two longer boundary lines are touchlines. The two shorter lines are goal lines.
The field of play is divided into two halves by a halfway line, which joins the midpoints of the two touchlines.
Each half has a shooting area line at 26,5-28,0cm from its goal line
The centre mark is at the midpoint of the halfway line. A circle with a radius of 9.15 cm ( 0.10yds) is marked around it.
Marks may be made off the field of play 9.15 cm ( 0.10yds) from the corner arc at right angles to the goal lines and the touchlines.
All lines must be of the same width, which must not be more than 1,2 cm ( 0.47ins). The goal lines must be of the same width as the goalposts and the crossbar.
A player who makes unauthorised marks on the field of play must be cautioned for unsporting behaviour. If the referee notices this being done during the match, the player is cautioned when the ball next goes out of play.