When placing a lap splice in reinforcing bars, which practice is consistent with CRSI recommended practice?

1. Lap bars the length shown on the drawings, offset splices as required, and keep the specified cover and spacing
2. Use the shortest possible lap, even if it is less than the drawing, to save steel
3. Always splice every bar at the same section so the cage is easier to tie
4. Lap splices are never allowed; every bar must be a single piece from end to end