In response to two separate petitions for rulemaking submitted by industry members, the Alcohol and Tobacco Tax and Trade Bureau proposes to establish the 144,000-acre Tualatin Hills American viticultural area (AVA) in portions of Multnomah and Washington Counties, in Oregon, and the adjacent 33,600-acre Laurelwood District AVA in portions of Washington and Yamhill Counties, in Oregon.  TTB is proposing these two AVAs simultaneously because, if established, they would share a common boundary. The use of AVA names on wine labels, which is voluntary, allows vintners to better describe the origin of their wine and consumers to better identify the wines they may purchase.