Item Level (Rules) (Player Core)

Each item has an item level, which represents the item's complexity and any magic or technology used in its construction. Simpler items with a lower level are easier to construct, and you can't Craft items that have a higher level than your own. If an item's level isn't listed, its level is 0. While characters can use items of any level, GMs should keep in mind that allowing characters access to items far above their current level may have a negative impact on the game.