up here in canada we have the ETCP rigging certificate.
i have that and also IRATA certified.
all kinds of other fall arrest, safety, etc. gov't certs.
i have done mostly rigging now since 1996.
best job in the world. doing lots of theater flyrail now.
studied with jay glerum and harry donovan (RIP harry).
never was a lighting guy, although as a rigger i have to work with them all the time.
ran sound and (minimal) lights for club bands. produced several albums and spent years studio engineering, but that was in the analog reel to reel days. my ears are shot now, anyway.
after digital took over, i switched to regular roadie, guitar tech. merch. whatever you needed. lots of touring.
but, no doubt, like you, i have done just about every job there is in this biz, from geotech to crew dispatcher to promoter to site coordinator to truss spot. we are all men of many hats.
anyway, thanks for sharing.