Here at a glance are the next steps in the move to get full voting rights in Congress for the District of Columbia:

First, the resolution as passed by both houses of Congress, must be ratified by three-fourths of the state legislatures - at least 38 of them - within seven years in order to become a full-fledged amendment to the constitution.

Right now, only one legislature, California's is in session. Common Cause is pushing to have it ratified in California as soon as possible, perhaps even this week, but legislative battles there over spending cuts may delay its passage.

Other legislatures, including ones in such heavily populated urban - and presumably supportive states as Michigan and Pennsylvania, go back in session after Labor Day. The proposed amendment will be brought before them as soon as possible.

In any case, all 50 state legislatures will be in session next year. Supporters of the District voting rights proposal will have it introduced in all the legislatures and are hoping to get it ratified within three years - the time it took to get passage of the amendment giving 18-year-olds the vote.

Once the approval of three-fourths of the states is achieved, the head of the General Services Administration certifies with a notice in the Federal Register that the amendment has been ratified.

Then comes the question of how and when District residents will elect their two senators and, based on population, probably one congressman. Carey Parker, an aide to the amendment's floor manager, Sen. Edward M. Kennedy (D-Mass.), said Congress will have to pass a law setting up the rules for the election of delegating that power to the District government.