reason, many important documents are written on animal vellum, such as diplomas. Referring to a diploma as a "sheepskin" alludes to the time when diplomas were written on vellum made from animal hides. Modern usage British Acts of Parliament are still printed on vellum for archival purposes, as are those of the Republic of Ireland. In February 2016, the UK House of Lords announced that legislation would be printed on archive paper instead of the traditional vellum from April 2016. However, Cabinet Office Minister Matthew Hancock intervened by agreeing to fund the continued use of vellum from the Cabinet Office budget. On 2017, the House of Commons Commission agreed that it would provide front and back vellum covers for record copies of Acts. Today, because of low demand and complicated manufacturing process, animal vellum is expensive and hard to find. The only UK company still producing traditional parchment and vellum is William Cowley (established 1870), which is based in Newport Pagnell, Buckinghamshire. A modern imitation is made of cotton. Known as paper vellum, this material is considerably cheaper than animal vellum and can be found in most art and drafting supply stores. Some brands of writing paper and other sorts of paper use the term "vellum" to suggest quality. Vellum is still used for Jewish scrolls, of the Torah in particular, for luxury book-binding, memorial books, and for various documents in calligraphy. It is also used on instruments such as the banjo and the bodhran, although synthetic skins are available for these instruments and have become more commonly used. The Catholic Church still issues its decrees and diplomas for its officials in Vellum. Paper vellum Modern imitation vellum is made from plasticized rag cotton or fibers from interior tree bark. Terms include: paper vellum, Japanese vellum, and vegetable vellum. Paper vellum is usually translucent and its various sizes are often used in applications where tracing is required, such as architectural plans. Its dimensions are more stable than a linen or paper sheet, which is frequently critical in the development of large scaled drawings such as blueprints. Paper vellum has also become extremely important in hand or chemical reproduction technology for dissemination of plan copies. Like a high-quality traditional vellum, paper vellum could be produced thin enough to be virtually transparent to strong light, enabling a source drawing to be used directly in the reproduction of field-used drawings. Preservation Vellum is