tire tread depth question

Any major tread that is less then 2/32 4/32 on the front fail no matter how small the spot is......( I don’t think micro sipes count)

You might want to pick you battles on thus one tho.....

 

§393.75 details the "minimum" to avoid tickets or warnings. OOS gives a little more wiggle room. For example, less than 2/32" tread (4/32" on a steer) at ANY point along a major tread groove (not including wear bars) is good for a ticket or warning, but unless you're 1/2 that measurement on 2 adjacent tread grooves, you're not going to be OOS. As for missing chunks of tread, that's spelled out in the OOS criteria as well:

 

I had an inspection level 1 in queen city tx 59N , i had a big chunk in the middle somehow was missing front driver steer #### near brand new tired, it was clear to see it the way i stoped and he seen it and just have me a warning for it, then gave me a out of serv for my trailer the brake chamber lines were rubbing not even leaking, lucky there was a parts store down the block befpre the scale he let me u hook go buy it and replace it and i drove off

 

It probably falls to officer discretion.

 

Sounds like you need to pay closer attention during your pre/post trips and in route inspections. How much air pressure do you keep in your drive or steer tires?

 

100 all around

 

§373.75(a)(2) prohibits "any" tread or sidewall separation...but OOS requires 75% of the tread width or 12" chunk along the circumference of the tire.

OOS has very specific requirements...and the defect either meets them or it doesn't. If it does, you'll be put OOS. If not, it's up to the officer whether to issue a warning or citation.

 

If you want to know what the regulation says read it do not ask other people about it.