Despite the name the Harris tweed industry is today focused in Lewis with the major finishing mills in Shawbost and Stornoway. Every length of cloth produced is stamped with the official Orb symbol, trademarked by the Harris Tweed Association in 1909, when Harris Tweed was defined as "hand-spun, hand-woven and dyed by the crofters and cottars in the Outer Hebrides"; Machine-spinning and vat dyeing have since replaced hand methods, and only weaving is now conducted in the home, under the governance of the Harris Tweed Authority, established by an Act of Parliament in 1993. Harris Tweed is now defined as "hand woven by the islanders at their homes in the Outer Hebrides, finished in the islands of Harris, Lewis, North Uist, Benbecula, South Uist and Barra and their several purtenances (The Outer Hebrides) and made from pure virgin wool dyed and spun in the Outer Hebrides."