Pierce County voters considered eight charter amendments Tuesday, all of them on election issues.

Amendment 1: Make the county sheriff a nonpartisan office limited to three consecutive four-year terms. Passing.

Amendment 2: Make the county assessor-treasurer a nonpartisan office limited to three consecutive four-year terms. Passing.

Amendment 3: Make the county auditor a nonpartisan office limited to three consecutive four-year terms. Passing.

Amendment 4: Postpone the implementation of instant-runoff voting until 2010. failing.

Amendment 5: Allow voters to rank up to three candidates for most county offices in order of preference. failing.

Amendment 6: Allow voters to rank more than three candidates when it becomes technically possible. PASSING.

Amendment 7: Specify that all candidates – regardless of party affiliation – must obtain 25 signatures of registered voters to qualify for the ballot. Passing.

Amendment 8: Authorize the County Council to impose a fee for filing referendums for the ballot. Passing.