OLYMPIA, Wash. (AP) - Tax rebel Tim Eyman's latest initiative has secured a spot on the November statewide ballot.

Initiative 960 is the only citizen initiative to qualify this year, an unusually small number in a state that often votes on a variety of issues.

Secretary of State Sam Reed announced Thursday that a random check of Eyman's 314,504 petition signatures showed enough to secure a place on the ballot. It takes about 225,000 valid signatures. About 17 percent of Eyman's sample were invalid or duplicate signatures.

The measure would close some loopholes in the state's spending limit law and require much more public information about all tax proposals in Olympia.

An opposition group already has formed, and Eyman said in a telephone interview from Yakima that he will lead a "counterpunch campaign."

"They're saying this means death, destruction and the end of western civilization," he said.

A King County Superior Court judge last week rejected critics' attempts to keep the measure off the ballot.

One referendum, dealing with a new state law on consumer lawsuits against insurance companies, also could qualify if sponsors submit enough signatures by Saturday. Backers and critics have been working with Gov. Chris Gregoire to see if compromise legislation would be preferable to running a ballot campaign.