Key provisions of rival plans backed by Gov. Arnold Schwarzenegger and state Senate Democrats to draw districts for the Legislature, California’s congressional delegation and the state Board of Equalization:

WHO WOULD DRAW DISTRICTS?

Schwarzenegger plan: A panel of three retired judges who would be selected by legislative leaders from a pool of 24 ex-judges nominated by the state Judicial Council. There would have to be at least one panel member from each major political party.

Democrats’ plan: A seven-member commission. The governor, the four top legislative leaders, the Judicial Council and the president of the University of California each would appoint one member. No more than three members could be from the same political party. Calls for commission that reflects state’s diverse population.

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WHEN WOULD NEW DISTRICTS BE DRAWN?

Schwarzenegger’s plan: For 2006 elections, although election officials say there wouldn’t be time to put new districts in place by then; and after each new federal census.

Democrats’ plan: After each new federal census, starting in 2011.

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HOW WOULD THE PLANS BE APPROVED?

Schwarzenegger plan: Requires unanimous approval by panel of retired judges and approval by voters.

Democrats’ plan: Requires approval by a majority of commissioners.

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WHAT WOULD SOME OF THE STANDARDS BE FOR DRAWING DISTRICTS?

Schwarzenegger plan: Districts would have to be nearly equal in population, compact and follow city and county boundaries as much as possible. No consideration could be given to the effect on incumbents or political parties.

Democrats’ plan: Districts would have to be nearly equal in population, compact and follow city and county boundaries as much as possible. They also would have to reflect what Senate Democrats call “communities of interest.”