List of Authorized Certification Body With Its National Reference: These reference members are Nationals Organization with autorized certification body by country. National Organization of each country has the same parts numbers. Following standards that are named in the above section EN 54 Standard Family Parts. EN 54 standards have been developed by European Committee for Standardization with the approval of their members. Austria, ASI OENORM EN 54-; Belgium, NBN NBN EN 54-; Bulgaria, BDS BDS EN 54-; Croatia, HZN HRN EN 54-; Cyprus, CYS CYS EN 54-; Czech Republic, UNMZ CSN EN 54-; Denmark, DS DS/EN 54-; Estonia, EVS EVS-EN 54-; Finland, SFS SFS-EN 54-; France, AFNOR NF EN 54-; Germany, DIN DIN EN 54-; Hungary, MSZT MSZ EN 54-; Iceland, IST ÍST EN 54-; Ireland, NSAI I. S. EN 54-; Italy, UNI UNI EN 54-; Latvia, LVS LVS EN 54-; Lithuania, LST LST EN 54-; Luxembourg, ILNAS EN 54-; Republic of Macedonia, ISRM МКС EN 54-; Malta, MCCAA SM EN 54-1; Netherlands, NEN NEN-EN 54-; Norway, SN NS-EN 54-; Poland, PKN PN-EN 54-; Portugal, IPQ EN 54-; Romania, ASRO SR EN 54-; Slovakia, SUTN STN EN 54-; Slovenia, SIST SIST EN 54-; Spain, AENOR UNE-EN 54-; Sweden, SIS SS-EN 54-; Switzerland, SNV SN EN 54-; Turkey, TSE TS EN 54-; United Kingdom, BSI BS EN 54-; Albania, DPS S SH EN 54-; Bosnia and Herzegovina, BAS BAS EN 54-; Montenegro, ISME MEST EN 54-; Serbia, ISS SRPS EN 54-. In the United Kingdom it superseded BS 5445: Part 1: 1977. BS EN 54-1: 1996 was published in December 1996