Every elevated steel water tank, standpipe or reservoir should be carefully inspected prior to repair and/or repainting, and at any time when leakage or some other apparent deterioration is observed. In any event, all elevated water tanks should be thoroughly inspected at intervals of not more than five years. It is the intent of this document to define the requisite qualifications of the inspecting agency, the type of inspection to be made and the data considered essential. The most recent changes principally affect Sec. B-2, revising the terms for extra work, and Sec. B-6, on cleanliness. In addition, the entire section on painting (Sec. C) has been removed and, in revised form, constitutes a new specification, D102, which is being printed together with this edition of D101. D102 provides recommendations that should be followed for painting or repainting elevated steel water storage tanks, standpipes, and reservoirs. This revision of the standard adds to Sec. 5.4.6 the detailed requirements which must be met by cold-applied tasteless and odorless tar-base paint.