1.1. Whether the lines are 5 cm wide, (no more and no less)
1.2. The length of the lines and diagonals (12.73 m each) on both courts (See Diagram 13)
1.3. That the colour of the lines is distinct from the colours of the court and the free zone
1.4. In the case of competition other than World, FIVB or Official one, if there are lines of other courts on the playing area, the boundary lines of the actual playing court must be of a different colour from all others
1.5. Official warm-up areas are to be designated before the match begins. Warm-up areas are to be 3m x 3m and are to be located in the bench side corners of the playing area, outside the free zone (Diagram 1a in the VC Rulebook)