This document contains amendments to DIN 18550-1:2018-01, which has the same scope as in DIN EN 13914-1:2016-09. DIN 18550-1:2018-01 and this amendment further apply to the use of plasters in accordance with DIN EN 998-1 and DIN EN 15824 on walls and ceilings of structures that comply with the applicable standards, in particular DIN EN 1992-1-1, DIN EN 1996, DIN 4103-1 and DIN 4213, and can also be applied to similar plaster bases, e. g. in old buildings.