Question: When was smoking banned in restaurants in the state where WDBC is located?

full_context: Document 1: Smoking, Health and Social Care (Scotland) Act 2005: The Act established that, from 26 March 2006, it would be an offence to smoke in any wholly or substantially enclosed public space in Scotland, with a small number of exceptions, such as: prisons, care homes and police interview rooms. Private member clubs were not exempted. Hotel rooms could be designated by the proprietors as smoking rooms, but they were under no obligation to do so, and if they did not, the Act applied to them as any other space.
Document 2: List of smoking bans in the United States: Statewide smoking ban: On December 7, 2006, after passage by Ohio voters on November 7, 2006, Chapter 3794 (titled ``Smoking Ban '') of the Ohio Revised Code went into effect, banning smoking statewide in all enclosed workplaces in Ohio, including bars and restaurants. The law exempts (1) private residences except when being used as a business when employees other than the owner are present, (2) designated hotel / motel smoking rooms, (3) family - owned and operated businesses not open to the public where all employees are related to the owner, (4) designated smoking areas in nursing homes, (5) retail tobacco stores, (6) outdoor patios, (7) private clubs with no employees. The law is enforced by the Ohio Department of Health, which began enforcement on May 3, 2007. A business may be fined up to $2,500 and individuals $100 for violation of the ban. Local governments may regulate smoking more stringently than the state.
Document 3: List of smoking bans in the United States: New York City, From May 18, 2014 everyone under the age of 21 was banned from buying cigarettes, tobacco products and e-cigarettes. Effective May 23, 2011, smoking was banned in all parks, boardwalks, beaches, recreation centers, swimming pools and pedestrian plazas. On March 30, 2003, smoking was banned in all enclosed workplaces, including bars and restaurants; exempts tobacco bars, owner - operated bars, separately ventilated smoking rooms in bars, private clubs with no employees, private functions organized for the promotion and sampling of tobacco products, and retail tobacco shops. Shortly after, on July 24, 2003, the statewide smoking ban came into effect. New York City may suspend or revoke a business's license if it has been found guilty of violating this law three times within 12 months.
Document 4: Ann Arbor, Michigan: Four major AM radio stations based in or near Ann Arbor are WAAM 1600, a conservative news and talk station; WLBY 1290, a business news and talk station; WDEO 990, Catholic radio; and WTKA 1050, which is primarily a sports station. The city's FM stations include NPR affiliate WUOM 91.7; country station WWWW 102.9; and adult-alternative station WQKL 107.1. Freeform station WCBN-FM 88.3 is a local community radio/college radio station operated by the students of the University of Michigan featuring noncommercial, eclectic music and public-affairs programming. The city is also served by public and commercial radio broadcasters in Ypsilanti, the Lansing/Jackson area, Detroit, Windsor, and Toledo.
Document 5: List of smoking bans in the United States: Statewide smoking ban: On May 1, 2010, after being signed into law by Governor Jennifer Granholm on December 18, 2009, the Dr. Ron Davis Law took effect, banning smoking statewide in all enclosed, indoor workplaces in Michigan, as well as the outdoor patios of bars and restaurants. The law exempts only cigar bars, retail tobacco stores, private home offices, company vehicles including commercial trucks, and Detroit's three casinos' gambling floors. The law is silent as to whether local governments may regulate smoking more strictly than the state, though it prohibits state or local health departments from enacting any smoking rules different than the law. In December 2011, a judge dismissed fines against a Warren, Michigan bar owner who had claimed that his bar's Keno machines classified his establishment as a casino exempt from the ban.
Document 6: WRDT: WRDT, known on the air as "The Word AM 560, Detroit's Christian Talk", is a radio station licensed to Monroe, Michigan, serving the Detroit metropolitan area. The station broadcasts in HD Radio with 500 Watts daytime power from a transmitter located in South Monroe, Michigan, and 14 Watts nighttime power (Non-HD) from a transmitter located in Royal Oak Township, Michigan. The Royal Oak Township location shares the Greater Media tower with WCSX, WRIF & WMGC. Its low frequency and strongly directional daytime signal give the station good coverage of the Detroit market, despite the lower power.
Document 7: WCBY: WCBY (1240 AM and W264CF 100.7 FM) is a radio station in Cheboygan, Michigan, broadcasting a classic country format delivered by Westwood One "Big Country Gold" is the slogan, which plays off sister country FM WMKC 102.9 known as "Big Country - 102-9". WCBY is owned by Black Diamond Broadcast Holdings, LLC.
Document 8: List of smoking bans in the United States: Statewide smoking ban: Since January 1, 1995, smoking has been banned in all enclosed workplaces in California, including bars and restaurants (bars were excluded until January 1, 1998); these following areas were exempt until June 9, 2016: meeting and banquet rooms except while food or beverage functions are taking place (including set - up, service, and clean - up activities or when the room is being used for exhibit activities), retail or wholesale tobacco shops and private smokers lounges (i.e. cigar bars), truck cabs / tractors if no nonsmoking employees are present, theatrical production sites if smoking is an integral part of the story, medical research or treatment sites if smoking is integral to the research or treatment being conducted, private residences except homes licensed as family day care homes during the hours of operation and in those areas where children are present, and patient smoking areas in long - term health care facilities.
Document 9: List of smoking bans in the United States: No statewide smoking ban. Instead, Tennessee's 2007 statewide smoking law, the Non-Smoker Protection Act, prohibits smoking statewide in all public places in Tennessee, except as exempted; (1) any business, including a bar or restaurant, that does not serve persons under 21, (2) designated hotel / motel smoking rooms, (3) tobacco industry - related facilities, (4) outdoor areas and areas with an open garage door, (5) nursing homes, (6) designated smoking areas not accessible to the general public in businesses with three or fewer employees, (7) private clubs, (8) private residences and vehicles unless it is being used for child care, daycare, or public transportation of children, (9) retail tobacco stores, and (10) commercial vehicles occupied solely by the operator. Local governments are preempted from regulating smoking.
Document 10: WSCN: WSCN (100.5 FM) is a radio station licensed to Cloquet, Minnesota, serving the Duluth-Superior area. The station is owned by Minnesota Public Radio (MPR), and airs MPR's "News and Information" network, originating from KNOW in Minneapolis/St. Paul.
Document 11: List of smoking bans in the United States: Statewide smoking ban: On May 1, 2010, after being signed into law by Governor Jennifer Granholm on December 18, 2009, the Dr. Ron Davis Law took effect, banning smoking statewide in all enclosed, indoor workplaces in Michigan, as well as the outdoor patios of bars and restaurants. The law exempts only cigar bars, retail tobacco stores, private home offices, company vehicles including commercial trucks, and Detroit's three casinos' gambling floors. The law is silent as to whether local governments may regulate smoking more strictly than the state, though it prohibits state or local health departments from enacting any smoking rules different than the law.
Document 12: List of smoking bans in the United States: In 1995, California was the first state to enact a statewide smoking ban; throughout the early to mid-2000s, especially between 2004 and 2007, an increasing number of states enacted a statewide smoking ban of some kind. As of July 2017, the most recent statewide smoking ban is North Dakota's, which was ratified by voters on November 6, 2012.
Document 13: WBFX: WBFX (101.3 FM, "The Brew") is a radio station broadcasting a mainstream rock format, serving the Grand Rapids, Michigan market and owned and operated by iHeartMedia. WBFX is also an affiliate of the Western Michigan Broncos Radio Network.
Document 14: WHEB: WHEB (100.3 MHz) is a commercial FM radio station licensed to Portsmouth, New Hampshire, and serving the Seacoast Region of New Hampshire and Southern Maine. The station airs a mainstream rock radio format and is owned by iHeartMedia, Inc.. It is consistently one of the top two stations in the Nielsen ratings' Portsmouth-Dover-Rochester radio market. WHEB begins each weekday with a regional comedy radio show, "The Morning Buzz," hosted by Greg Kretschmar. It is based at co-owned 101.1 WGIR-FM in Manchester, New Hampshire. The rest of the day, local DJs are heard.
Document 15: WDBC: WDBC (680 AM, "The Information Authority") is a radio station licensed to Escanaba, Michigan broadcasting a full-service format featuring news, talk and adult standards music.
ground_truth: May 1, 2010
sub_queries: What is the name of the state where WDBC is located? Answer: Michigan
when was smoking banned in restaurants in Michigan Answer: May 1, 2010