NFPA 1142-1999 Standard on Water Supplies for Suburban and Rural Fire Fighting

NFPA 1142-1999 Standard on Water Supplies for Suburban and Rural Fire Fighting. 4-1 General. 4-1.1 The authority having jurisdiction shall obtain the infor- mation specified in 2-1.1 and shall determine the classification number from the sections of this chapter. 4-1.2 For purposes of this standard, structures shall be classi- fied by type of construction and shall be assigned a construc- tion classification number. 4-1.3 Where more than one type of construction is present in a structure, the higher construction classification number shall be used for the entire structure. 4-2* Construction Classification Number. 4-2.1* Guide to Classification of Types of Building Construc- tion. The types of construction include five basic types desig- nated by roman numerals as Type I, Type II, Type III, Type IV, and Type V. This system of designating types of construction also includes a specific breakdown of the types of construction through the use of arabic numbers. These numbers follow the roman numeral notation where identifying a type of construc- tion (e.g., Type I-443, Type II-111, Type III-200). The arabic numbers following each basic type of construc- tion (e.g., Type I, Type II) indicate the fire resistance rating requirements for certain structural elements as follows: (1) First arabic number: Exterior bearing walls (2) Second arabic number: Columns, beams, girders, trusses and arches, supporting bearing walls, columns, or loads from more than one floor (3) Third arabic number: Floor construction (220: 1-3, A-1-3) 4-2.2 Type I (443 or 332) Construction — Construction Clas- sification Number 0.5. Type I construction shall be that type in which the structural members, including walls, columns, beams, girders, trusses, arches, floors, and roofs, are of approved noncombustible or limited-combustible materials and shall have fire resistance ratings not less than those speci- fied in Table 4-2.2. 6-1 Water Source Approval. Any water source used to meet the requirement of this standard shall be of suitable quality as approved by the AHJ and maintained and accessible on a year- round basis. 6-2 Water Use Agreements. The AHJ shall enter into water- use agreements when a private source of water is used to meet the requirements of this standard. 6-3 Identifying Water Sources. A water source indicator approved by the AHJ shall be erected at each water point identifying the site for fire department emergency use. 6-4 Fire Department Connections. Any connection provided at a water source required by this standard shall be approved by the...