The Highway Code Great Britain version, available in English and Welsh, applies to England, Scotland and Wales, but regional specific signs such as driver location signs in England or bilingual signs in Scotland and Wales are not covered. The Northern Ireland version, available in English and Irish, applies to Northern Ireland. Costing one penny, the first edition of the Highway Code was published on 14 April 1931. It contained just 18 pages of advice, including the arm signals to be given by drivers and police officers controlling traffic. The second edition, considerably expanded, appeared in 1934, and now illustrated road signs for the
Plumbing code Officials (IAPMO). Plumbing code Plumbing code is a code that provides regulations for the design, installation and inspection of building plumbing and sanitary systems. In the U.S., jurisdictions enact their own codes, some of which are based upon model plumbing codes. The most widely adopted plumbing code in the United States is the International Plumbing Code published by the International Code Council (ICC). This code is also used as the basis for the plumbing code of some other countries. Another model plumbing code published in the United States is the Uniform Plumbing Code published by the International Association of Plumbing