Washington, D.C. -- Wineries should be prepared for scrutiny of their compliance with regulations from the Alcohol and Tobacco Tax and Trade Bureau (TTB) on the issues of alcohol content, fill levels in bottles and pesticide residue, among others, according to comments by TTB officials and investigators at seminars this spring.To better assist wineries to get the information, TTB offered Compliance Seminars for Bonded Wine Premises, which in California included stops in Arroyo Grande, Monterey, Santa Rosa (two different days), Napa (also two different days) and Lodi. TTB is due to be in North Carolina for the Southeast U.S. in later April, then in Oregon and Washington