Arkansas does not allow local jurisdictions like cities or counties to collect a local sales tax. The Arkansas state sales tax of 6.5% is applicable statewide. You can view the sales tax rates for various cities in Arkansas here.
Equitable adjustment is a term of art that includes an adjustment to fee, and the target. minimum, and maximum fees should not be increased in this case for what I hope are obvious reasons. The adjustment should be limited to the effect of the new wage determination on wages and fringes.
(F) Terms of a trust that limit the power of a trustee to make an adjustment between principal and income do not affect the application of this section unless it is clear from the terms of the trust that the terms are intended to deny the trustee the power of adjustment conferred by division (A) of this section.