<Li> Statewide smoking ban: Effective July 1, 2004, smoking is banned in all enclosed public places and workplaces, including bars and restaurants . The law exempts private clubs when not open to the public, private residences except when used as a business for healthcare or childcare, designated hotel / motel smoking rooms, retail tobacco stores, licensed cigar or hookah bars, stage performances involving smoking, places where smoking - related scientific research is occurring, religious ceremonies involving smoking, outdoor areas, designated areas in nursing homes as approved by the state, and other tobacco - related workplaces such as farms and distributors . Local governments and boards of health may regulate smoking more strictly than the state . </Li> <Li> Boston, February 9, 2009, banned by the Boston Public Health Commission on outside patios of bars and restaurants; also banned on February 9, 2019 (10 years later than the other new restrictions) in cigar and hookah bars, unless the establishment obtains an additional 10 - year exemption . Additionally, smoking is banned in all hotel rooms in the city of Boston . Tobacco products cannot be sold at educational institutions or health care institutions including pharmacies and stores having pharmacies within . </Li> <Ul> <Li> 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 . </Li> </Ul> <Li> 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 . </Li>

When was smoking banned in restaurants in michigan