Observing Countries

• Algeria ( IANOR )   
• Argentina ( IRAM )   
• Austria ( ASI )   
• Belarus ( BELST )   
• Bosnia and Herzegovina ( BAS )   
• Bulgaria ( BDS )   
• Chile ( INN )   
• Croatia ( HZN )   
• Czech Republic ( UNMZ )   
• Finland ( SFS )   
• France ( AFNOR )   
• Hong Kong ( ITCHKSAR )   (Correspondent member)
• Hungary ( MSZT )   
• Israel ( SII )   
• Kazakhstan ( KAZMEMST )   
• Lithuania ( LST )   
• Mauritius ( MSB )   
• Morocco ( IMANOR )   
• Oman ( DGSM )   
• Philippines ( BPS )   
• Romania ( ASRO )   
• Russian Federation ( GOST R )   
• Serbia ( ISS )   
• Seychelles ( SBS )   (Correspondent member)
• Singapore ( SPRING SG )   
• South Africa ( SABS )   
• Switzerland ( SNV )   
• Turkey ( TSE )