Editing Line of scrimmage (section)

{{Short description|Transverse line in American football}}
{{Distinguish|Scrummage}}
[[File:2019 Walk-On's Independence Bowl (6035575).jpg|right|thumb|300px|[[American football]] line of scrimmage, before a play]] 
[[File:Calgary Stampeders training camp 2006.jpg|thumb|A [[Canadian football]] line of scrimmage, before a play.]]
In [[gridiron football]], a '''line of scrimmage''' is an invisible transverse line (across the width of the field) beyond which a team cannot cross until the next play has begun.  Its location is based on the spot where the ball is placed after the end of the most recent play and following the assessment of any [[American football rules#Fouls and their penalties|penalty yards]].