All the info you need is here:
http://www.dol.wa.gov/vs/monorailqa.htm#What%20is
"What is the Monorail Tax?
At the November 2002 General Election, Seattle voters approved a motor vehicle excise tax of up to 1.4 percent (1.4%) on Washington licensed vehicles registered within the City of Seattle. The Board of the Seattle Monorail Project set the tax rate at .85 percent (0.85%) to be charged during the planning phase of the project. The tax will increase to 1.4 percent (1.4%) when long term bonds are issued for capital construction."
