Weapon and Armor Proficiency: Paladins are proficient with all simple and martial weapons, with all types of armor (heavy, medium, and light), and with shields (except tower shields).
Aura of Good (Ex): The power of a paladin's aura of good (see the detect good spell) is equal to her paladin level.
Detect Evil (Sp): At will, a paladin can use detect evil, as the spell. A paladin can, as a move action, concentrate on a single item or individual within 60 feet and determine if it is evil, learning the strength of its aura as if having studied it for 3 rounds. While focusing on one individual or object, the paladin does not detect evil in any other object or individual within range.
Smite Evil (Su): Once per day, a paladin can call out to the powers of good to aid her in her struggle against evil. As a swift action, the paladin chooses one target within sight to smite. If this target is evil, the paladin adds her Charisma bonus (if any) to her attack rolls and adds her paladin level to all damage rolls made against the target of her smite. If the target of smite evil is an outsider with the evil subtype, an evil-aligned dragon, or an undead creature, the bonus to damage on the first successful attack increases to 2 points of damage per level the paladin possesses. Regardless of the target, smite evil attacks automatically bypass any DR the creature might possess.
In addition, while smite evil is in effect, the paladin gains a deflection bonus equal to her Charisma modifier (if any) to her AC against attacks made by the target of the smite. If the paladin targets a creature that is not evil, the smite is wasted with no effect.
The smite evil effect remains until the target of the smite is dead or the next time the paladin rests and regains her uses of this ability. At 4th level, and at every three levels thereafter, the paladin may smite evil one additional time per day, as indicated on Table: Paladin, to a maximum of seven times per day at 19th level.
Code of Conduct: A paladin must be of lawful good alignment and loses all class features except proficiencies if she ever willingly commits an evil act.
Additionally, a paladin's code requires that she respect legitimate authority, act with honor (not lying, not cheating, not using poison, and so forth), help those in need (provided they do not use the help for evil or chaotic ends), and punish those who harm or threaten innocents.
Associates: While she may adventure with good or neutral allies, a paladin avoids working with evil characters or with anyone who consistently offends her moral code. Under exceptional circumstances, a paladin can ally with evil associates, but only to defeat what she believes to be a greater evil. A paladin should seek an atonement spell periodically during such an unusual alliance, and should end the alliance immediately should she feel it is doing more harm than good. A paladin may accept only henchmen, followers, or cohorts who are lawful good.
Ex-Paladins: A paladin who ceases to be lawful good, who willfully commits an evil act, or who violates the code of conduct loses all paladin spells and class features (including the service of the paladin's mount, but not weapon, armor, and shield proficiencies). She may not progress any further in levels as a paladin. She regains her abilities and advancement potential if she atones for her violations (see the atonement spell description in Spell Lists), as appropriate.
