This standard covers the material and application for the plastering of cementitous finish coatings for in-groud swimming pools or other cementitious water-containment vessels. This standard was approved by ANSI as a new standard on November 3, 2015. It now includes Supplement A approved by ANSI on May 10, 2019. This is the printed version that will be mailed to you. A downloadable PDF version is also available in the APSP Store.