Specifications include, but are not limited to: All new materials, including plates, shapes, welding electrodes, etc., used in ship's structure, where applicable shall meet the requirements of ABS for Grade A mild steel and the Buy America 250 provisions of the contract. Metallurgical test reports, ABS charge sheets and manufacturer's certificates of compliance shall be obtained at the Contractor's expense and provided to the Owner.; Materials, workmanship and welding procedures shall comply with the requirements of this section and Section 0.5 of these specifications.; Care shall be taken to obtain good alignment of structural members, particularly where such members oppose each other on opposite sides of bulkheads or decks. In such cases, misalignment exceeding half the thickness of the thicker member shall be considered cause for 260 rejection. Where discontinuities of structure are unavoidable, suitable brackets or other reinforcement shall be installed.; Workmanship shall result in fair lines and smooth surfaces. See GP 105-1.20 for additional workmanship requirements.; Sharp and ragged edges or corners of structure which are unsightly or which could cause injury to personnel shall be removed, ground smooth or sniped. In any spaces or areas that could trap liquids, adequate limbers shall be provided to ensure effective drainage.; All burning of notches and holes in the structure shall be carefully laid out and shall be regular in outline with jagged edges removed and with rounded corners. Semicircular "rat holes" shall be 270 provided in framing members in way of passing welded seams or butts in the attached plating
