Answer:
The following National Annexes can be used for generating wind loads according to EN 1991‑1‑4:
CEN European Union
BDS Bulgaria
BS United Kingdom
CSN Czech Republic
CYS Cyprus
DIN Germany
DK Denmark
I.S. Ireland
LST Lithuania
NBU Belgium
NEN Netherlands
NF France
NP Portugal
NS Norway
ÖNORM Austria
PN Poland
SFS Finland
SIST Slovenia
SR Romania
SS Singapore
SS Sweden
STN Slovakia
TKP Belarus
UNE Spain
UNI Italy
Furthermore, snow loads can also be generated according to DIN 1055‑4, CTE DB‑SE‑AE, and ASCE/SEI 7‑16.