How to read this preventive maintenance programm(PEP)

[Good Karma Bums]

Hi guys,
we think we finally found THE bus. Going for a road test tomorrow or Friday.
If you can take a quick look at the pdf file. I have nooooo mechanic background. Everything is fine according to the mechanic (check marks everywhere!). My question is: what about the tires measurement? What does that mean? Are they borderline and need to be change soon or brand-new-ish?
If anything else catch your attention, please let me know.
Thank you so much

[banman]

being a paranoid computer user -- if you can take a pic of your pdf and post it as a jpeg I'll be waay more likely to look at it...

[Sehnsucht]

The tires aren't new but have sufficient tread. For reference on truck tires of this size, the steer tire minimum tread depth is 4/32" and drive tire minimum is 2/32".

[Brad_SwiftFur]

Tires are "about half worn" for a 1-ton chassis. I ran the VIN, it shows a 6.6 diesel for an '07 GM chassis.