2000: The Green Party of Pennsylvania qualified for statewide ballot status by petition in August 2000, for the November 2000 elections.

2000: The Green Party of Pennsylvania qualified for statewide ballot status as a minor political party, by virtue of votes cast for Ralph Nader and Winona LaDuke, Barbara Knox, Anne Goeke and Tom Linzey in November 2000.

Pennsylvania election law provides automatic ballot status only to those parties in which the number of registered voters is greater than 15 percent of the number of voters registered in all parties. Minor political parties (in which at least one candidate on the ballot in at least ten counties in the most recent general election earned at least 2 percent of the votes cast for the candidate who received the greatest number of votes in the same election) have automatic ballot status for special elections only.

As of November 2001, the Green Party had 3,266 registrants. These voters constituted 0.05 percent of the number of voters registered in any party, short of the 15 percent required and thus not sufficient for ballot qualification for the 2002 general election.

2002: The Green Party of Pennsylvania re-qualified for statewide ballot status as a minor political party, by virtue of votes cast for Michael Morrill and Vicki Smedley for Governor and Lt. Governor in November 2002.

As of November 2003, the Green Party had 11,084 registrants. These voters constituted 0.14 percent of the number of voters registered in any party, short of the 15 percent required and thus not sufficient for ballot qualification for the 2004 general election.

2004: The Green Party of Pennsylvania re-qualified for statewide ballot status by petition in August 2004, for the November 2004 elections, with 30,023 valid signatures.

As of May 2005, the Green Party had 16,047 registrants. These voters constituted 0.20 percent of the number of voters registered in any party, short of the 15 percent required and thus not sufficient for ballot qualification for the 2006 general election.