From your link: (for a Class A CDL) "A gross combination weight rating or gross combination weight of 11,794 kilograms or more (26,001 pounds or more), whichever is greater, inclusive of a towed unit(s) with a gross vehicle weight rating or gross vehicle weight of more than 4,536 kilograms (10,000 pounds), whichever is greater."
That sounds like it goes back to my original statement of "any" combination of 26k+ and any trailer. Confusing, eh?
And in my state ANY combination with a 10k trailer is CDL A required. MORE confusion, as that is in direct conflict with your state's rules.
Now I'm not saying you are wrong, but it sounds like Indiana wrote their rules wrong. At no point does that text refer to Gross Carrier Weight Rating by that term, so they clearly are not following the federal guidelines very precisely.
Let's settle this "maximum weight without a CDL" debate once and for all.
Regarding the previous quote, the key term, if you read carefully behind the legalese of the lines, is that it refers to
TOWED units with a gross weight of more than 10,000 pounds when the truck is above 26,000. (Emphasis added).
Here's an official administrative interpretation directly from the USDOT, so it's the universal federal rule that applies to all states:
Question 6: A driver operates a tractor of exactly 26,000 pounds Gross Vehicle Weight Rating (GVWR), towing a trailer of exactly 10,000 pounds GVWR, for a GCWR of 36,000 pounds. HM and passengers are not involved. Is it a Commercial Motor Vehicle (CMV)s and does the driver need a CDL?
Guidance: No to both questions. Although the vehicle has a Gross Vehicle Weight Rating (GVWR) of 36,000 pounds, it is not a Commercial Motor Vehicle (CMV) under any part of the definition of that term in
§383.5, and a CDL is not federally required."
And here's the link to the website where that interpretation can be found:
https://www.fmcsa.dot.gov/advisory-committees/mcsac/fmcsa-regulatory-guidance
Note that the link is a Word file, so you'll need Word or OpenOffice to open it.
And here's an industry source summarizing the requirements:
"For example, a truck with a GVWR of 26,000 pounds or less can tow a trailer with a GVWR of 10,000 pounds or less and not require the operator to have a CDL under federal requirements."
https://www.ntea.com/NTEA/Member_be...GVWR_and_GCWR_in_specifying_work_trucks1.aspx
I hope this clarifies things.