Flashlights for MDPL matches must be hand held and suitable for every day carry. Flashlights that are too large or deemed impractical by the Match Director may not be used.
IDPA has introduced flashlight rules in the latest rulebook. They are reproduced below:
3.20. Flashlight Usage Rules
3.20.1. If a shooter elects or is required to use a flashlight on a stage, the default starting position for the flashlight is in the shooter’s support hand with the light off, unless otherwise dictated by the stage description. The stage description may not force the shooter to start with the flashlight stowed on his or her body.
3.20.2. Once the stage begins the flashlight may be left on during the entire stage at the shooter’s discretion.
3.20.3. The flashlight must be retained by the shooter throughout the course of fire.
3.20.4. A dropped flashlight does not incur a penalty as long as the shooter retrieves the flashlight prior to firing the next shot in the string of fire. Note: if a shooter drops a flashlight, the SO may, at their discretion, illuminate the area for safety reasons until the shooter retrieves the flashlight. This will not be deemed as SO interference.