Lacquer Thinner is usually a mixture of solvents able to dissolve a number of different resins or plastics used in modern lacquer. Previously, lacquer thinners frequently contained alkyl esters like butyl or amyl acetate, ketones like acetone or methyl ethyl ketone, aromatic hydrocarbons like toluene, ethers such as glycol cellosolves, and/or alcohols. Beginning in the 21st century parts of the United States began a reduction of VOCs (volatile organic compounds) starting in Los Angeles, CA. The control of these lacquer thinners are completed by California Air Resources and South Coast Air Quality Management District. New ingredients to match air standards in lacquer thinner are now available such as Oxsol 100, soy methyl esters, ethylene glycol and there is ongoing development.