Book excerpt: NIRSA, the leader in collegiate recreation—with a membership serving over 8 million students—provides the latest rule changes in flag and touch football with its 19th edition of a classic in the field. The 2019 & 2020 NIRSA Flag & Touch Football Rules Book & Officials' Manual highlights all the rule text that has changed since the previous edition, making it easy to locate what is new or changed. Updated information for officials includes instruction on proper mechanics for three-person and four-person crews. And the pocket size of the guide makes it easy to consult at games, whether you’re a coach, instructor, official, player, or fan of flag and touch football. The manual also offers summaries on fouls and penalties, youth football rules, and 4 on 4 football rules, and it presents the 10 commandments for clinicians and observers. It contains detailed explanations of the following rules: Rule 1. The Game, Field, Players, and Equipment Rule 2. Definitions of Playing Terms Rule 3. Periods, Time Factors, and Substitutions Rule 4. Ball in Play, Dead Ball, and Out of Bounds Rule 5. Series of Downs, Number of Downs, and Team Possession After Penalty Rule 6. Kicking the Ball Rule 7. Snapping, Handing, and Passing the Ball Rule 8. Scoring Plays and Touchback Rule 9. Conduct of Players and Others Rule 10. Enforcement of Penalties The officials’ portion is then presented in seven sections: Part I. Officiating Basics Part II. Game Administration Part III. Officiating Responsibilities Part IV. Communication Part V. 3-Person Mechanics Part VI. 4-Person Mechanics Part VII. NIRSA Official Flag Football Signals This easy-to-read rule book and officials’ manual reflects NIRSA’s continuing commitment to the development of flag and touch football and the organization’s efforts to keep training and officials’ manuals current and relevant. As such, this pocket guide is an essential resource for officials, coaches, and players connected to flag and touch football in various settings, from youth levels through collegiate levels.