Rules Index

Chapter 9: Playing the Game / General Rules / Damage / Step 4: If Damage Remains, Reduce the Target's Hit Points

Nonlethal Damage

Source Core Rulebook pg. 453
You can make a nonlethal attack in an effort to knock someone out instead of killing them (see Knocked Out and Dying on page 459). Weapons with the nonlethal trait (including fists) do this automatically. You take a –2 circumstance penalty to the attack roll when you make a nonlethal attack using a weapon that doesn’t have the nonlethal trait. You also take this penalty when making a lethal attack using a nonlethal weapon.