You need to know the publication cycle of a statue when conducting statutory research:
Slip Laws. The first version of a newly enacted statute is a slip law. Slip laws are separately issued pamphlets containing the text of one legislative act.
Session Laws. Enacted statutes arranged chronologically by their date of passage. Session laws are a permanent publication (bound form) in chronological order of the slip laws enacted during a legislative session.
Revised Code. A collection of all currently valid statutes in a fixed subject or topical arrangement. Each subject is usually referred to as a title. They are further subdivided into chapters and then sections.
Annotated Code. A subject arrangement of all currently valid statutes with extensive editorial enhancements such as ‘historical notes,’ ‘cross references,’ ‘library references,’ and ‘notes of decisions.’