Current
Core Supplement
NA to BS EN
Gives the nationally defined parameters (NDPs) for certain clauses where national choice is allowed for the design approach in STR and GEO limit states.
NA+A2:2022 to BS EN 1997-1:2004+A1:2013. First published November 2007. Amendment corrigendum No.1 dated 31 December 2007 - Reference in Table NA.1 8.6(4) changed to A.8.6, last word of A.3.3.2 changed to "resistance" and Note A in Table A.NA.7 made same as Tables A.NA.6 and A.NA.8. Amendment No. 1 dated 31 July 2014 - Implementation of national amendment A1:2014: Clause NA.1, Table NA.1 and Annex A amended. Amendment No. 2 dated 28 February 2022 - Implementation of national amendment A2:2022: Table Na.1, Table A.NA.20, Table A.NA.21, NA.4 and A.6 amended.
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