NCBs are obliged to provide such service themselves or to appoint an agent to perform this service on their behalf .
ˇØ åŁíØŒÝò ŒåíôæØŒÝò ôæÜðåæåò ıðï ÷ æåïýíôÆØ íÆ ðÆæÝ ÷ ïıí ôØò ó ÷ åôØŒÝò ıðçæåóßåò ïØ ßäØåò Þ íÆ ïæßæïıí ÆíôØðæüóøðï , ï ïðïßïò åŒôåº åß ôØò åí ºüª ø ıðçæåóßåò ªØÆ ºïª ÆæØÆìóü åŒåßíøí .