Los Angeles ? Members of the California Medical Assn. want the state to raise the smoking age from 18 to 21 the highest in the nation.

The association, which represents 35,000 doctors, is expected to vote on the proposal by Tuesday during its annual session, which draws 400-plus delegates to Anaheim.

Tony Rinaldi, 19, of San Francisco smokes a cigarette in the Haight Ashbury area of San Francisco. Members of the California Medical Assn. propose sponsoring legislation that would raise the state's smoking age to 21.

If passed, the resolution would direct the association’s lobbyists to support legislation that would raise the legal age for buying, possessing or receiving tobacco products. No such legislation is pending.

Such a bill would also make it illegal to sell cigarettes to those younger than 21.

“This is hopefully a proposal that might discourage and make it more difficult to purchase tobacco products, especially among older teen-agers and college-age kids,” said Dr. Leonard Klay, a Santa Rosa obstetrician and gynecologist who plans to introduce the proposal on Saturday.

All 50 states set a minimum age of at least 18 to buy tobacco products following a 1992 directive from Congress. In three other states, Alabama, Alaska and Utah, the legal age is 19.

Passage of the resolution is not assured: Klay said physicians within the district he represents, which stretches from Marin County to the Oregon state line, split nearly 50-50 on the issue before forwarding it for debate and a vote.

The American Lung Assn., which estimates that 90 percent of all smokers pick up the habit before the age of 21, favors enforcing current laws rather than raising the age limit.