I don't think you'll get a clear cut answer on that question, in this forum. But. since nobody else has answered yet, I'll put in my 2 cents.
From RITA Form 10 (Application for Municipal Income Tax Refund), Box 7:
"Over-the-road truck driver. The wages of an interstate trucker regularly assigned to drive in more than one state are only taxable by the trucker’s municipality of residence*. Truck drivers assigned to drive in multiple Ohio municipalities only may be eligible to receive a 90% refund from their principal place of work. Your employer must complete and sign the Employer Certification Part 2 on page 2."
Q. Am i exempt from paying City taxes?
A. It would appear to depend on whether "several times a year" meets the meaning of " regularly assigned". Probably not. The fact that RITA is dunning you would indicate that you haven't satisfied that requirement.
Q. 'Interstate Drivers Form'. Have anyone heard of that?
A. I quick Google search indicates there are forms for Interstate drivers unrelated to Ohio municipal income taxes.
Another issue is does " Akron where i pick up the tractor and trailer and make my deliverys/pickups" constitute your "Principal place of work".
" "Principal place of work" means the fixed location to which an employee is required to report for employment duties on a regular and ordinary basis." (https://codes.ohio.gov/ohio-revised-code/section-718.011)
*Another reference:
https://www.ritaohio.com/Media/700053/Occasional
