When you arrive at a game site....

[bossman72]

High school playoffs- yes.

All others - no.

(I can probably say yes to college when I start doing college games this year)

[SanDiegoSteve]

For big games with a crew, yes. For most others, the umpires are on the field ready to go at the proper times. Our policy was to step on the field no later than 15 minutes prior to the scheduled start time. Here, if you don't show for a game or are late, your butt is in a sling really quick. The HS coaches just assume you are going to be there. I know some coaches that if you came up to the field (usually a long way from the parking lot around here), and told them you were here, they would look at you funny and say, "so, good for you!"

[MajorDave]

I work for and by the coaches. Plus it is good manners. I have called the AD or coach's cell when I got there from parking lot IF the parking lot was far from the game field AND I had worked there before (high school only).

College associations require us to be there one hour before game, dressed to impress (jacket and t-neck or tie and dress pants shoes. No sweats/jeans, ever) from JUCO/NAIA to D-1 and report to head coach/AD/game management personnel that we have arrived.