An update on the push for a WA switch to the 'pay per mile' tax (away from a gas tax), GUEST: transportation policy analyst Mariya Frost, (with Kemper Development in Bellevue, WA), explains the difficulty of documenting a 'pay per mile' (aka road usage charge RUC) tax, why HB 1832 in the WA Legislature is the "wrong way to implement a RUC in Washington state", any new system needs to replicate the features of a gas tax, how the WA 18th Amendment applies to the tax for highway spending and not mass transit or generalized transportation spending, the double talk about transportation mobility from WA transportation bureaucrats.