In 1973, Labor retained office with 54.5 percent of the two-party vote, and the LCL became the South Australian division of the Liberal Party of Australia in 1974. Labor retained power in 1975 with a majority of seats but lost the two-party vote on 49.2 percent. Dunstan then instituted "one vote one value" electoral reform, which meant that all seats had to contain approximately the same number of enrolled voters; and created an independent body, the South Australian Electoral Districts Boundaries Commission, to draw the electoral boundaries.