5-Man Crew
5 officials · 4 sheetsFive officials, four sheets: the two wings share the Line of Scrimmage checklist. Each sheet covers points of emphasis, pre-game duties, kickoff, scrimmage-down keys and end-of-game responsibilities for that position.
6-Man Crew
6 officials · 4 sheetsSix officials, four sheets: the wings share one checklist and the deep wings share another. Coverage areas and deep responsibilities shift from the 5-man mechanics, so work from the 6-man sheet when you are in a six-official game.
Where to line up
Scrimmage pre-snapStarting positions exactly as written on the checklists above, not a generic mechanic. Worth noting the Umpire: in a 5-man crew he works 7 yards off the line on the defensive side, but in a 6-man crew he starts in the offensive backfield.
These are NWAFOA crew mechanics, last updated May 2026. They cover how we work games here, not the rules themselves. For a rules question, use the Rules Assistant, and confirm anything that matters against the current NFHS Football Rules Book and your assigner.