2001 F550 - OBD II?

[fmiser]

This is the first vehicle I'm maintaining that is new enough to have on-board diagnostics. I'm trying to figure out for sure if this one is OBD I or OBD II.

I'm finding that the heavier trucks were not required to have it in '96 like cars. Some sites say "check the sticker under the hood". I'm not finding anything there about OBD. I don't have a scanner, or another car to compare the connector.

I'm hoping someone here knows if a 2001 built in Dec of 2000 would be OBD II.

Thanks!