Plain meaning rule

The plain meaning rule, also known as the literal rule, is one of three rules of statutory construction traditionally applied by English courts. The other two are the “mischief rule” and the “golden rule.”

The plain meaning rule dictates that statutes are to be interpreted using the ordinary meaning of the language of the statute. In other words, a statute is to be read word for word and is to be interpreted according to the ordinary meaning of the language, unless a statute explicitly defines some of its terms otherwise or unless the result would be cruel or absurd. Ordinary words are given their ordinary meaning, technical terms are given their technical meaning, and local, cultural terms are recognized as applicable. The plain meaning rule is the mechanism that prevents courts from taking sides in legislative or political issues. Additionally, it is the mechanism that underlies textualism and, to a certain extent, originalism.

To avoid ambiguity, legislatures often include "definitions" sections within a statute, which explicitly define the most important terms used in that statute. But some statutes omit a definitions section entirely, or (more commonly) fail to define a particular term. The plain meaning rule attempts to guide courts faced with litigation that turns on the meaning of a term not defined by the statute, or on that of a word found within a definition itself.

According to the plain meaning rule, absent a contrary definition within the statute, words must be given their plain, ordinary and literal meaning. If the words are clear, they must be applied, even though the intention of the legislator may have been different or the result is harsh or undesirable. The literal rule is what the law says instead of what the law was intended to say.

Prof. Larry Solum expands on this premise:

Some laws are meant for all citizens (e.g., criminal statutes) and some are meant only for specialists (e.g., some sections of the tax code). A text that means one thing in a legal context, might mean something else if it were in a technical manual or a novel. So the plain meaning of a legal text is something like the meaning that would be understood by competent speakers of the natural language in which the text was written who are within the intended readership of the text and who understand that the text is a legal text of a certain type.

Justices normally impose an absurdity limit on this rule, which states that a statute cannot be interpreted literally if it would lead to an absurd result. In the US Supreme Court Chung Fook v. White (1924) marked the beginning of the looser American Rule that the intent of the law was more important than its text.

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