1. A standard match consists of two equal periods of 15 minutes ( or 10 minutes ), with players changing ends at the end of the first period
2. Two additional periods of 5 minutes ( or 3 minutes ) can be played when a drawn match requires a winner, with players changing ends at the end of the first period once again
3. The referee can make an allowance for stoppages
4. DIRECT FREE KICKS and PENALTY KICKS can be played after the final whistle