Caterpillar forklifts... Off-limits?

I don't see any threads regarding Cat forklifts, nor do I see any information in our technical library about them.
Are they outside the purview of the ACMOC?

Someone had a date maybe 1970 ? something that Cat wanted ACMOC to stop at. But never been a real hard and fast thing from what I see. More that tractor guys generally are not that into fork lifts. On other sites where I know there is nothing stopping fork lift talk, information is still hard to get. Since most farmers only use them a few minutes at a time they put up with things they would fix on a tractor.

cat forks were originally made by tow motor corporation which was bought by cat decades ago.